15-Letter Words Containing: O,R,S,A,C
(In Any Order)
There are 781 15 letter words,
566 15 letter phrases and
0 15 letter abbr's with
O,R,S,A,C in.
Best Scoring for Word Games
| Word | Save | Length | Usage | Points | Type | ||
|---|---|---|---|---|---|---|---|
| psychobiography | 15 | 36 | nounn | ||||
Valid word for Scrabble US
| |||||||
| chlorpromazines | 15 | 33 | noun, adjectiven, adj | ||||
noun • a drug (trade name Thorazine) derived from phenothiazine that has antipsychotic effects and is used as a sedative and tranquilizer | |||||||
| chlorothiazides | 15 | 33 | noun, adjectiven, adj | ||||
noun • a diuretic drug (trade name Diuril) used in the treatment of edema and hypertension | |||||||
| synchronization | 15 | 32 | verb, nounv, n | ||||
noun • the relation that exists when things occur at the same time • an adjustment that causes something to occur or recur in unison • coordinating by causing to indicate the same time | |||||||
| overspecialized | 15 | 32 | adjectiveadj | ||||
verb • To specialize to an excessive degree. | |||||||
| microphysically | 15 | 32 | adverb, adjectiveadv, adj | ||||
Valid word for Scrabble US
| |||||||
| cephalothoraxes | 15 | 32 | nounn | ||||
noun • The fused head and thorax of spiders and crustaceans | |||||||
| archaeopteryxes | 15 | 32 | noun, adjectiven, adj | ||||
noun • extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds | |||||||
| physiographical | 15 | 31 | adjectiveadj | ||||
Valid word for Scrabble US
| |||||||
| overspecializes | 15 | 31 | verbv | ||||
verb • To specialize to an excessive degree. | |||||||
| or scroll down to see all results... | |||||||
Tip: Scrabble EU allows far more words than US! Also change the max length to see more words. | |||||||
All 15 Letter Words
Words (781)
- congratulations
- psychotherapist
- synchronization
- pithecanthropus
- personification
- prognostication
- procrastinating
- procrastination
- crystallization
- uncontroversial
- diversification
- interscholastic
- neoconservative
- microscopically
- synchronisation
- conservationist
- vasoconstrictor
- cytomegalovirus
- controversially
- overspecialized
- gastronomically
- disarticulation
- commercialising
- inconsideration
- crystallography
- cerebrovascular
- reconsideration
- neuropsychiatry
- inconsiderately
- incommensurable
- contemporaneous
- prognosticating
- voyeuristically
- counterproposal
- atherosclerosis
- prognosticative
- phosphocreatine
- insurrectionary
- cooperativeness
- considerateness
- comfortableness
- coldheartedness
- agranulocytosis
- uncompromisable
- ultramicrotomes
- trisoctahedrons
- transhistorical
- transcriptional
- subcategorizing
- stratifications
- sociohistorical
- socioculturally
- servomechanisms
- semidocumentary
- schoolmasterish
- saccharomycetes
- resocialization
- reproachfulness
- reorchestration
- reorchestrating
- reconnaissances
- recommendations
- recapitulations
- radicalizations
- psychometrician
- psychohistorian
- prognosticators
- prettifications
- prefabrications
- preadolescences
- posthemorrhagic
- polysaccharides
- physiographical
- perspicaciously
- overdecorations
- overcomplicates
- overclassifying
- overarticulates
- overaccentuates
- orchestrational
- monosaccharides
- macrostructural
- irrationalistic
- introspectional
- intercorrelates
- historiographic
- harpsichordists
- electrosurgical
- electromyograms
- electroanalysis
- echinodermatous
- desacralization
- decontaminators
- cyproheptadines
- counterbalances
- contraindicates
- conglomerations
- confraternities
- confectionaries
- concretizations
- concessionaires
- conceptualizers
- complementaries
- commissionaires
- commiseratingly
- commensurations
- coinvestigators
- cholinesterases
- chlorpromazines
- categorizations
- bronchodilators
- astrophysicists
- antituberculous
- anticholesterol
- anticarcinogens
- antiaphrodisiac
- anfractuosities
- acrimoniousness
- treacherousness
- polycrystalline
- carnivorousness
- atherosclerotic
- voraciousnesses
- vicariousnesses
- veraciousnesses
- unappreciations
- trichomonacides
- thalassocracies
- subcontraoctave
- stratovolcanoes
- stockbrokerages
- stereotaxically
- stereologically
- spinthariscopes
- spectrographies
- sesquicarbonate
- semilogarithmic
- semiabstraction
- securitizations
- secularizations
- secondarinesses
- sclerotizations
- saprophytically
- saprogenicities
- sacrosanctities
- rigidifications
- revivifications
- retroactivities
- refractometries
- reconsolidating
- reconsecrations
- reconfirmations
- reconciliations
- recolonizations
- recodifications
- recanalizations
- reactionaryisms
- rapaciousnesses
- radioactivities
- psychotherapies
- psychobiography
- pseudopregnancy
- provocativeness
- provincialities
- prostatectomies
- pronunciamentos
- procrastinators
- prepublications
- preponderancies
- prehistorically
- polyacrylamides
- pictorialnesses
- pharmacologists
- pharmacognostic
- pharmacognosies
- parthenocarpies
- parasitological
- paradoxicalness
- pantisocratists
- pantisocratical
- oxidoreductases
- overspeculation
- overspeculating
- overspecializes
- overorchestrate
- overmedications
- overextractions
- overcompliances
- overcompensates
- overcompensated
- overcentralizes
- overcapitalizes
- oscillographies
- orthopsychiatry
- organometallics
- organochlorines
- nonrelativistic
- nonrecombinants
- nonpsychiatrist
- nonperformances
- nonparticipants
- noncreativities
- noncorrelations
- noncooperations
- nonconservative
- nonconservation
- nonconformances
- noncharismatics
- noncelebrations
- nonastronomical
- nonaristocratic
- monocrystalline
- monochromatisms
- miscorrelations
- microtonalities
- microstructural
- micropulsations
- microphysically
- microcosmically
- microbarographs
- meroblastically
- mercaptopurines
- macrostructures
- macroevolutions
- macrocosmically
- macroaggregates
- lymphosarcomata
- irrevocableness
- irreconcilables
- ionospherically
- intercomparison
- indoctrinations
- incoordinations
- incommensurably
- ichthyosaurians
- hypochondriases
- hypercatabolism
- hydrostatically
- hydrodynamicist
- hydrocephaluses
- hemochromatoses
- grandiloquences
- geostrophically
- gentrifications
- fructifications
- fractiousnesses
- excommunicators
- eutrophications
- ethnohistorical
- esterifications
- encephalographs
- electrodynamics
- electrodialysis
- electrodialyses
- electroanalyses
- electroacoustic
- econometricians
- ecocatastrophes
- echocardiograms
- discriminations
- discouragements
- diffractometers
- dictatorialness
- dichloroethanes
- diastrophically
- deconsecrations
- decolorizations
- dechlorinations
- customarinesses
- cryoprotectants
- crashworthiness
- counterstrategy
- counterstaining
- countershadings
- countermeasures
- counterinstance
- counterexamples
- counterassaults
- cotransductions
- corporealnesses
- cooperationists
- contrapositives
- contrapositions
- contradictories
- contractilities
- containerboards
- conservatorship
- connaturalities
- congressionally
- conglomerateurs
- concelebrations
- comradelinesses
- computerphobias
- comparativeness
- comparabilities
- commercialities
- commercialistic
- colorfastnesses
- collateralities
- claustrophobias
- clamorousnesses
- chronotherapies
- chordamesoderms
- chondrocraniums
- cholestyramines
- chlorpropamides
- chlorothiazides
- chemotherapists
- chancellorships
- cephalothoraxes
- cephalothoraces
- centrifugations
- centralizations
- carcinosarcomas
- bacteriophagies
- bacteriologists
- atrociousnesses
- atmospherically
- atheroscleroses
- astrophysically
- astronautically
- archiepiscopate
- archaeopteryxes
- antiromanticism
- antimonarchists
- antiforeclosure
- agranulocytoses
- aerodynamicists
- adrenalectomies
- adenocarcinomas
- achondroplasias
- abstractionists
- abstractionisms
- vascularization
- ultramicroscope
- streptobacillus
- stereotypically
- oligosaccharide
- neoconservatism
- microsporangium
- macroscopically
- hypochondriasis
- hemochromatosis
- dissatisfactory
- desertification
- dermatoglyphics
- crossopterygian
- chorioallantois
- anisotropically
- allegoricalness
- achondroplastic
- ultraprecisions
- preperformances
- overabstracting
- anticorruptions
- zygobranchiates
- watercolourists
- viscosimetrical
- verticillations
- unconstrainedly
- unconstrainable
- uncategorisable
- ultramicroscopy
- tuberculisation
- tropicalisation
- trichinizations
- trichinisations
- transactionally
- thoracoplasties
- thoracocenteses
- thalattocracies
- thalassographic
- teratogenicists
- tentaculiferous
- syncretizations
- syncretisations
- synchronistical
- suspercollating
- superorganicist
- superorganicism
- supercargoships
- subcontractings
- subcategorising
- streptocarpuses
- stratospherical
- straticulations
- straitwaistcoat
- stereographical
- spironolactones
- spirochaetaemia
- sphaerocrystals
- spermatogenetic
- spermatoblastic
- shockumentaries
- sericitizations
- sericitisations
- selenographical
- seismographical
- securitisations
- secularisations
- scribaciousness
- sclerotisations
- sclerodermatous
- schoolmastering
- scholarlinesses
- schillerization
- schillerisation
- scaremongerings
- sarraceniaceous
- sarcenchymatous
- sansculotteries
- sacerdotalizing
- sacerdotalising
- saccharizations
- saccharisations
- rostrocarinates
- romanticalities
- rollercoastered
- rhinoscleromata
- rhinencephalons
- revocablenesses
- retroactiveness
- resurrectionary
- resocialisation
- resinifications
- recoverableness
- reconvalescence
- recontextualise
- reconstitutable
- reconsolidation
- reconnoissances
- recondensations
- reconceptualise
- recolonisations
- recognisability
- reciprocalities
- recanalisations
- recalcitrations
- rancorousnesses
- radioscopically
- radicalisations
- quattrocentists
- quattrocentisms
- pyrotechnicians
- psychrometrical
- psychographical
- psychogeriatric
- psychoanalyzers
- psychoanalysers
- provincialising
- prosenchymatous
- prosaicalnesses
- projectizations
- projectisations
- procuratorships
- procreativeness
- procrastinatory
- procrastinative
- processionalist
- proceleusmatics
- polysaccharoses
- polychromatisms
- pococuranteisms
- phosphocreatins
- pharyngoscopies
- pharmacopolists
- pharmacopoeists
- pharmacognosist
- phallocentrisms
- perissosyllabic
- perissodactylic
- perissodactyles
- pergamentaceous
- patrifocalities
- passifloraceous
- parthenocarpous
- pantopragmatics
- overspecialises
- overspecialised
- overcentralises
- overcentralised
- overcapitalises
- overcapitalised
- osteoarthritics
- orthochromatism
- orchesographies
- oraculousnesses
- oestrogenically
- octocentenaries
- obstructionally
- nuclearizations
- nuclearisations
- novocentenaries
- neurosurgically
- narcoterrorists
- narcoterrorisms
- myocardiographs
- musicotherapies
- morphinomaniacs
- monosymmetrical
- modernistically
- misgovernaunces
- misappreciation
- microsatellites
- micropegmatites
- micromarketings
- microaerophiles
- metachromatisms
- menispermaceous
- mechanomorphism
- matrilocalities
- matrifocalities
- lithochromatics
- lexicographists
- laryngoscopists
- laryngectomised
- lactiferousness
- karstifications
- isoperimetrical
- interosculation
- interosculating
- interactionists
- interactionisms
- inharmonicities
- indiscretionary
- inarticulations
- inappreciations
- improvvisatrice
- improvisatrices
- immunoreactions
- idiosyncratical
- icositetrahedra
- ichthyosauruses
- iatrogenicities
- hypsometrically
- hypocrystalline
- hypochondriasts
- hypochondriasms
- hygroscopically
- hydroextractors
- hydrocorallines
- homochromatisms
- holocrystalline
- hieracosphinxes
- hieracosphinges
- heterosociality
- heteroscedastic
- heterodactylous
- harmonistically
- haemocytometers
- haemacytometers
- glossographical
- geodemographics
- gastroenteritic
- furaciousnesses
- fractionisation
- fractionalising
- formalistically
- forensicalities
- flavourdynamics
- fideicommissary
- fibrocartilages
- factorabilities
- exclaustrations
- etherifications
- equiponderances
- enchondromatous
- electrovalences
- electroplatings
- electromotances
- electrolysation
- electrographies
- ectomycorrhizas
- eccremocarpuses
- ecclesiolatries
- eburnifications
- dorsibranchiate
- dolichosauruses
- documentarising
- doctrinarianism
- disincorporates
- disincorporated
- discretionarily
- disconfirmation
- discomboberates
- discomboberated
- discolourations
- disarticulators
- dichromaticisms
- desacralisation
- denitrificators
- decolourisation
- decolorisations
- decarburisation
- decarbonisation
- dactylographies
- dactylographers
- cyclobarbitones
- crystalizations
- crystalisations
- cryptographists
- crapulousnesses
- counterfesaunce
- counterfeisance
- counterfactuals
- correlativities
- correlativeness
- corpuscularians
- corporatenesses
- corinthianising
- cooperativities
- convulsionaries
- conveyorisation
- conversationism
- conversableness
- contrariousness
- contrapuntalist
- contraindicants
- contractiveness
- contesserations
- contemporaneans
- contemperatures
- contemperations
- conspiratresses
- consimilarities
- consideratively
- conservatoriums
- consecratedness
- conquerableness
- connaturalising
- conformableness
- confessionaries
- concretisations
- concessionnaire
- concessionaries
- conceptualisers
- computerisation
- commissaryships
- commiseratively
- colourabilities
- collateralising
- climatographies
- circumnutations
- circumgyrations
- circumforaneous
- circumambagious
- chromotherapies
- chromatospheres
- chromatophorous
- chromatologists
- chromaticnesses
- chrestomathical
- chondrichthyans
- cholesterolemia
- chlorthalidones
- chloritizations
- chloritisations
- chemopsychiatry
- chemoautotrophs
- chalcographists
- cervicographies
- certificatories
- centralisations
- cathodographies
- cathodographers
- categorisations
- categoricalness
- castrametations
- castanospermine
- carpometacarpus
- caramelizations
- caramelisations
- caprifoliaceous
- canisterization
- canisterisation
- calorifications
- calendarisation
- bronchoscopical
- bronchographies
- brachypinakoids
- brachydiagonals
- brachycephalous
- brachiosauruses
- bioastronautics
- bibliothecaries
- batrachophobias
- autodestructive
- autodestructing
- audiometricians
- astrodynamicist
- archpriesthoods
- archiepiscopacy
- archidiaconates
- archeozoologist
- archeozoologies
- archeomagnetism
- archeobotanists
- archeoastronomy
- archaezoologies
- archaeometrists
- archaeobotanist
- archaeobotanies
- arachnoiditises
- apprenticehoods
- antithrombotics
- anthropopsychic
- anthropophobics
- antaphrodisiacs
- andromonoecisms
- andromonoecious
- anamorphoscopes
- amaryllidaceous
- alcoholometries
- aeroelasticians
- actinotherapies
- actinochemistry
- acroparesthesia
- achromatisation
- achromaticities
- accessorinesses
- absorbefacients
- vascularisation
- trachelospermum
- toulouse-lautrec
- thoracocentesis
- theophrastaceae
- state-controlled
- spirochaetaceae
- sphaerocarpales
- sphaerobolaceae
- spectroscopical
- servomechanical
- semi-abstraction
- scrophulariales
- scomberesocidae
- sclerotiniaceae
- schistorrhachis
- sarcosomataceae
- sarcoscyphaceae
- romanticisation
- rhinotracheitis
- poitou-charentes
- peronosporaceae
- panhysterectomy
- opisthorchiasis
- opisthobranchia
- nitrosobacteria
- myxobacteriales
- megalobatrachus
- macrosporangium
- macrencephalous
- keratoscleritis
- ichthyosauridae
- hierarchisation
- heterotrichales
- grossulariaceae
- gorgonocephalus
- democratisation
- crystallisation
- cryptacanthodes
- cryoanaesthesia
- cross-sentential
- criminalisation
- counter-sabotage
- conversationist
- contraclockwise
- circularisation
- chrysochloridae
- charadriiformes
- catheterisation
- campylorhynchus
- brachydactylous
- brachistochrone
- bacteriophagous
- autofluorescent
- aristolochiales
- arboriculturist
- americanisation
- adenomyosarcoma
- acroanaesthesia
- accipitriformes
Phrases (566)
- voluntary muscle
- vertical section
- turn one's stomach
- transaction file
- taras shevchenko
- styrax japonicum
- struthio camelus
- strategic buyout
- strait of malacca
- stonecrop family
- startle reaction
- spreading factor
- sports announcer
- special contract
- south west africa
- source materials
- sorbus domestica
- solidago bicolor
- solar prominence
- software product
- social structure
- social gathering
- sir francis bacon
- siege of syracuse
- service contract
- senecio vulgaris
- scorpaenoid fish
- school principal
- school newspaper
- scholarly person
- saxo grammaticus
- sacramento river
- richard d. fosbury
- research project
- rescue operation
- reciprocal cross
- prunus domestica
- product research
- procrustean rule
- practice session
- political sphere
- pocket billiards
- plexus caroticus
- physical process
- physeter catodon
- personal effects
- personal chattel
- orycteropus afer
- order volvocales
- order scandentia
- newspaper column
- naucrates ductor
- natural resource
- mythical monster
- microcosmic salt
- mask of pregnancy
- lycosa tarentula
- lonicera hirsuta
- lanius excubitor
- lactiferous duct
- joyce carol oates
- jack of all trades
- iridaceous plant
- intrinsic factor
- insurance policy
- insurance broker
- hyoscyamus niger
- horseback riding
- historical paper
- gustav kirchhoff
- ground substance
- genus tichodroma
- genus scorzonera
- genus salicornia
- genus podocarpus
- genus nycticorax
- genus eichhornia
- genus dasyprocta
- genus coriandrum
- genus copernicia
- genus calocedrus
- genus artocarpus
- genus anthoceros
- francois mansart
- falco peregrinus
- escherichia coli
- ernst boris chain
- encelia farinosa
- electrical shock
- domestic prelate
- displaced person
- descending aorta
- defense reaction
- dasyprocta aguti
- cuscuta gronovii
- criminal offense
- corylus avellana
- cornhusker state
- copper-base alloy
- container vessel
- confederate rose
- compositor's case
- common horsetail
- class ciliophora
- class asteroidea
- city of san marino
- chromatic vision
- chicory escarole
- chemical process
- charles laughton
- charles james fox
- charles goodyear
- cavity resonator
- catch one's breath
- carson mccullers
- carnassial tooth
- capital of israel
- capital of cyprus
- cape verde escudo
- cairina moschata
- broadcast medium
- bricks and mortar
- branta leucopsis
- basketball score
- background noise
- bachelor's button
- auditory ossicle
- arturo toscanini
- arachis hypogaea
- apothecary's shop
- anchovy dressing
- ancestor worship
- amerigo vespucci
- american parasol
- alveolar process
- alectoris graeca
- albert michelson
- advisory service
- actor's assistant
- across the nation
- acer platanoides
- abstract thought
- absorbent cotton
- abies lasiocarpa
- xyris operculata
- women's army corps
- weather forecast
- walrus moustache
- virginia cowslip
- vireo olivaceous
- victor franz hess
- vena bronchialis
- vascular conduit
- vancouver island
- us postal service
- upper-lower-class
- trash collection
- transverse colon
- transaction cost
- tobacco industry
- time-scale factor
- terrorist attack
- temporal canthus
- teachers college
- taste perception
- sydenham's chorea
- sword of damocles
- swertia speciosa
- sutura coronalis
- surgical process
- subclass rosidae
- string orchestra
- stomach exercise
- stock photograph
- steam jet ejector
- stassano furnace
- stannic chloride
- st. anthony's cross
- st andrews's cross
- spinal accessory
- space laboratory
- south carolinian
- sorbus aucuparia
- sorbus americana
- sophora japonica
- software package
- soft-shelled crab
- sodium carbonate
- social secretary
- social insurance
- social democracy
- smooth crabgrass
- smoking carriage
- skew correlation
- sir jacob epstein
- sinus coronarius
- sinus cavernosus
- simarouba glauca
- shoestring catch
- sharecrop farmer
- shagbark hickory
- service elevator
- sensory activity
- seneca snakeroot
- sedimentary rock
- secondary school
- second-hand store
- seaside scrub oak
- scipio africanus
- saxicola rubetra
- saxe-coburg-gotha
- saussurea costus
- sartorius muscle
- sarracenia minor
- san francisco bay
- san carlos apache
- rydberg constant
- rupicolous plant
- rumex acetosella
- rubiaceous plant
- romantic realism
- rock rattlesnake
- roccus saxatilis
- richard j. roberts
- rhus quercifolia
- retractor muscle
- resonant circuit
- replacement cost
- religious trance
- releasing factor
- reacquired stock
- ralph richardson
- raisin-nut cookie
- rainbow seaperch
- rain cats and dogs
- radioactive dust
- quercus coccinea
- quercus borealis
- public transport
- public relations
- princess of wales
- prairie schooner
- portacaval shunt
- port jackson pine
- pond bald cypress
- podocarpus amara
- picture postcard
- picea orientalis
- phosphorous acid
- pharaoh's chicken
- pelican crossing
- pectoralis minor
- pectoralis major
- passion of christ
- parochial school
- pacific sturgeon
- oxalis pes-caprae
- otto von bismarck
- organic disorder
- order secotiales
- order saurischia
- order psocoptera
- order orchidales
- order notostraca
- order lichenales
- order dicranales
- order agaricales
- orchestral bells
- ophrys muscifera
- olfersia cervina
- old-age insurance
- old church slavic
- oil conservation
- ohmic resistance
- obstetrical toad
- nord-pas-de-calais
- no-par-value stock
- nitrous bacteria
- new scotland yard
- nestorian church
- national service
- naja nigricollis
- myocastor coypus
- moving staircase
- mother carey's hen
- monocular vision
- molisch reaction
- migratory locust
- microscope stage
- metastatic tumor
- master of science
- mariner's compass
- marco polo's sheep
- manic depression
- magnetic storage
- macrotis lagotis
- luggage carousel
- lower-case letter
- louis xv of france
- louis xi of france
- louis vi of france
- louis ix of france
- louis iv of france
- lotus americanus
- local oscillator
- line of scrimmage
- leprosy bacillus
- lepiota rhacodes
- law of archimedes
- lactuca serriola
- lactuca scariola
- joseph m. jacquard
- johannes eckhart
- japanese apricot
- jacobus arminius
- ivory coast franc
- ischaemic stroke
- isatis tinctoria
- iris pseudacorus
- ionospheric wave
- inverse cosecant
- intraocular lens
- intercostal vein
- intercom speaker
- insulin reaction
- inky-cap mushroom
- incremental cost
- idria columnaris
- idesia polycarpa
- hyponitrous acid
- hypogastric vein
- hydrostatic head
- housatonic river
- horsetail lichen
- horsehair lichen
- honorary society
- homarus capensis
- hmg-coa reductase
- herbaceous plant
- hemorrhagic cyst
- helicteres isora
- have intercourse
- hall of residence
- half cross stitch
- halesia carolina
- grias cauliflora
- goldilocks aster
- glans clitoridis
- genus vorticella
- genus trombicula
- genus tricholoma
- genus thalarctos
- genus sarcophaga
- genus sarcobatus
- genus salpichroa
- genus pterocarya
- genus psychotria
- genus paronychia
- genus parochetus
- genus micromeria
- genus macrozamia
- genus lactophrys
- genus halocarpus
- genus halicoeres
- genus gastrocybe
- genus galeocerdo
- genus froelichia
- genus flacourtia
- genus ferocactus
- genus eriocaulon
- genus eleocharis
- genus drymarchon
- genus dracontium
- genus dimocarpus
- genus cystophora
- genus crotophaga
- genus crotalaria
- genus cronartium
- genus coumarouna
- genus coryanthes
- genus cortaderia
- genus conocarpus
- genus commiphora
- genus cochlearia
- genus cercospora
- genus centrosema
- genus carpodacus
- genus carpocapsa
- genus carphophis
- genus calocarpum
- genus calliphora
- genus brachycome
- genus ariocarpus
- genus arctocebus
- genus antidorcas
- genus alopecurus
- genus afrocarpus
- genus aerobacter
- genus acrocarpus
- genus achoerodus
- genus acherontia
- futures contract
- french polynesia
- free association
- frasera speciosa
- francois mauriac
- francisco franco
- francisco de goya
- franciscan order
- francis townsend
- francis scott key
- francis of assisi
- francis beaumont
- formal semantics
- fluorescent lamp
- ficus rubiginosa
- feature of speech
- family soricidae
- false beachdrops
- falco sparverius
- falco rusticolus
- explosive charge
- european sanicle
- european catfish
- escalator clause
- episcopal church
- epigastric fossa
- epidemic roseola
- eleostearic acid
- electrical storm
- electoral system
- earl of leicester
- duke of lancaster
- due process of law
- dryas octopetala
- dry plate process
- domestic partner
- diplomatic corps
- dioscorea batata
- devonshire cream
- damp-proof course
- crystal detector
- crustose thallus
- crustal movement
- crotalus viridis
- crotalus lepidus
- crosscut handsaw
- cross of lorraine
- crookneck squash
- creation science
- crataegus mollis
- course catalogue
- cottage industry
- costal cartilage
- costa rican colon
- cosmic radiation
- corydalis solida
- corticium solani
- corpus mamillare
- corona discharge
- cornus sanguinea
- cornish language
- cornflower aster
- coregonus artedi
- coragyps atratus
- coprinus comatus
- constant lambert
- conservative jew
- condylar process
- comtesse du barry
- computer storage
- computer display
- computer address
- common corn salad
- colour constancy
- colorado springs
- colaptes auratus
- codlins-and-cream
- coast white cedar
- coal-tar creosote
- closed-class word
- cleome serrulata
- class placodermi
- class gastropoda
- clarinet section
- clapp's favourite
- cigarette smoker
- christmas flower
- christmas factor
- chloris truncata
- chipping sparrow
- cherrystone clam
- charles kay ogden
- chalons-sur-marne
- cesarian section
- cesarean section
- celosia cristata
- celosia argentea
- cauliflower soup
- castor bean plant
- caspar bartholin
- carthusian order
- carolus linnaeus
- caroline islands
- carolina jasmine
- carlos the jackal
- carcinoma in situ
- carbonic acid gas
- carbon disulfide
- capparis spinosa
- capparis arborea
- cancer irroratus
- cactus euphorbia
- bypass condenser
- bypass capacitor
- bureau of customs
- brown onion sauce
- bronchial asthma
- bromus secalinus
- bromus japonicus
- british columbia
- breach of promise
- brace oneself for
- boatswain's chair
- black spleenwort
- black rock desert
- black rhinoceros
- black greasewood
- binocular vision
- batch processing
- basketball court
- basil of caesarea
- baruch de spinoza
- baron munchausen
- bachelor's degree
- bachelor of music
- automatic washer
- authorized stock
- atomistic theory
- association area
- associate in arts
- associate degree
- asigmatic aorist
- asian coral snake
- as a matter of fact
- arundo conspicua
- arsenic trioxide
- arnold schonberg
- arnold of brescia
- arizona sycamore
- arctotis venusta
- apostelic father
- anomalistic year
- anal intercourse
- anabolic steroid
- american lobster
- alveolar ectasia
- alizarin crimson
- aerobic exercise
- admission charge
- active transport
- active subwoofer
- acromial process
- acrocarpous moss
- acoustic storage
- absolute encoder