18-Letter Words Containing: I,I,O,S,T
(In Any Order)
There are 256 18 letter words,
513 18 letter phrases and
0 18 letter abbr's with
I,I,O,S,T in.
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| Word | Save | Length | Usage | Points | Type | ||
|---|---|---|---|---|---|---|---|
We couldn't find any valid Scrabble US words with a length of 18. Try changing the version of the game.
Tip: Scrabble EU allows far more words than US! | |||||||
All 18 Letter Words
Words (256)
- telecommunications
- disproportionately
- inconsequentiality
- transubstantiation
- transmogrification
- oversimplification
- institutionalizing
- antivivisectionist
- paleoclimatologist
- verisimilitudinous
- uniformitarianisms
- unaccountabilities
- ultrasophisticated
- ultramicroscopical
- triskaidekaphobias
- triboluminescences
- triboelectricities
- transportabilities
- transistorizations
- transilluminations
- thrombophlebitides
- thermoplasticities
- theatricalizations
- tachistoscopically
- supranationalities
- supersophisticated
- superminicomputers
- supercivilizations
- superadministrator
- subclassifications
- subcategorizations
- structuralizations
- stoichiometrically
- stereospecifically
- stereoregularities
- somnambulistically
- semidomestications
- semiconservatively
- sedimentologically
- satisfactorinesses
- ribonucleoproteins
- revascularizations
- renationalizations
- reinstitutionalize
- rehospitalizations
- redistributionists
- recrystallizations
- reconstructionists
- reconstructionisms
- radiosensitivities
- quattuordecillions
- quasiperiodicities
- psychophysiologist
- provincializations
- propagandistically
- pronounceabilities
- praiseworthinesses
- postmillennialists
- postmillennialisms
- postmillenarianism
- polyesterification
- polyacrylonitriles
- piezoelectricities
- physiopathological
- photosensitization
- photosensitivities
- photoreactivations
- photomicrographies
- photolithographies
- photodissociations
- photodisintegrates
- photodisintegrated
- photodecomposition
- pertinaciousnesses
- pathophysiological
- particularizations
- paleoclimatologies
- overspecialization
- overoptimistically
- overindustrializes
- overindustrialized
- overfertilizations
- overcommunications
- overclassification
- orthopsychiatrists
- orthogonalizations
- opinionativenesses
- nonrevolutionaries
- noninterventionist
- nonfraternizations
- nondiscriminations
- nondeductibilities
- noncooperationists
- noncomparabilities
- noncommutativities
- nonarbitrarinesses
- neurotransmissions
- neuropsychiatrists
- neurophysiologists
- multifariousnesses
- monochromaticities
- misrepresentations
- misinterpretations
- misidentifications
- misclassifications
- misadministrations
- mineralocorticoids
- microreproductions
- microphotographies
- micrometeorologist
- micrometeorologies
- micromanipulations
- microlepidopterous
- microencapsulation
- microencapsulating
- microdensitometric
- microdensitometers
- microcrystallinity
- microcalorimetries
- methemoglobinemias
- meretriciousnesses
- melodramatizations
- mechanochemistries
- maladministrations
- magnetostrictively
- lepidopterologists
- knowledgeabilities
- irresponsibilities
- introspectionistic
- interrelationships
- interoperabilities
- internationalities
- internationalising
- interinstitutional
- intercolumniations
- institutionalising
- inhospitablenesses
- industrializations
- individualizations
- incorruptibilities
- inconvertibilities
- incontestabilities
- inconceivabilities
- incommensurability
- incombustibilities
- impersonalizations
- immunoreactivities
- immunoprecipitates
- immunopathologists
- immunohematologist
- immunohematologies
- hyposensitizations
- hypophysectomizing
- hypersensitization
- hyperrationalities
- hyperpolarizations
- hyperpigmentations
- hypernationalistic
- hyperimmunizations
- hyperalimentations
- hydroelectricities
- homoscedasticities
- histophysiological
- hemoglobinopathies
- granulocytopoiesis
- fractionalizations
- ferroelectricities
- exterritorialities
- exceptionabilities
- evapotranspiration
- ethnomusicologists
- ethnomusicological
- epithelializations
- electrophysiologic
- electrophilicities
- electrodesiccation
- electrodepositions
- electrochemistries
- disputatiousnesses
- disproportionation
- disproportionating
- disintermediations
- diphenylhydantoins
- dihydroergotamines
- diastereoisomerism
- depersonalizations
- denominationalisms
- denationalizations
- demythologizations
- dematerializations
- deinstitutionalize
- dedifferentiations
- decriminalizations
- deconstructionists
- creditworthinesses
- counterquestioning
- counterinstitution
- counteradvertising
- conversationalists
- contradistinctions
- consubstantiations
- constitutionalizes
- constitutionalized
- constitutionalists
- constitutionalisms
- consequentialities
- congregationalists
- congregationalisms
- conceptualizations
- compartmentalising
- companionabilities
- commercializations
- commensurabilities
- collectivistically
- bureaucratizations
- bourgeoisification
- bloodthirstinesses
- biotransformations
- biodegradabilities
- biocompatibilities
- bacteriorhodopsins
- australopithecines
- antidiscrimination
- anticommercialisms
- antiadministration
- anagrammatizations
- unsatisfactoriness
- unconstitutionally
- ultranationalistic
- triphosphopyridine
- territorialisation
- sentimentalization
- sentimentalisation
- rhinolaryngologist
- pteridospermopsida
- overcapitalisation
- nonprognosticative
- muscivora-forficata
- laryngopharyngitis
- lacto-vegetarianism
- internationalistic
- hypoparathyroidism
- homobasidiomycetes
- histocompatibility
- glomerulonephritis
- fibrocartilaginous
- diethylstilbestrol
- cytoarchitectonics
- cross-fertilization
- cross-fertilisation
- corrosion-resistant
- ballistocardiogram
- arteriolosclerosis
- antiferromagnetism
- anticholinesterase
- anti-traditionalism
Phrases (513)
- woodwind instrument
- wisteria floribunda
- victor frankenstein
- upton beall sinclair
- tomistoma schlegeli
- third epistle of john
- third epistel of john
- tendonous synovitis
- television reporter
- television receiver
- tangible possession
- syzygium aromaticum
- syrian monetary unit
- supervisory routine
- superiority complex
- social organization
- social organisation
- sir mortimer wheeler
- sir martin frobisher
- sir frederick ashton
- sir christopher wren
- short-term liability
- setophaga ruticilla
- selective lipectomy
- scottish highlander
- scorpio the scorpion
- scandinavian nation
- respiratory illness
- priority processing
- posterior pituitary
- positive reinforcer
- political dissident
- polish monetary unit
- piano transcription
- physiological state
- physical attraction
- ostrya carpinifolia
- oscar hammerstein ii
- order ichthyosauria
- one thousand million
- oil-industry analyst
- oceanites oceanicus
- navigational system
- national censorship
- narcotic antagonist
- musical composition
- minor tranquilliser
- minister of religion
- material possession
- louis-hector berlioz
- logistic assistance
- logistic assessment
- linguistic relation
- kalmia angustifolia
- james whitcomb riley
- isabella i of castile
- international scale
- installation charge
- hypostasis of christ
- hypertonic solution
- historical document
- heat of vaporisation
- government minister
- giambattista marino
- genus struthiomimus
- garcinia mangostana
- functional disorder
- fricative consonant
- first epistle of john
- federation of tribes
- essential condition
- essential amino acid
- election commission
- elaeagnus latifolia
- economic assistance
- dmitri shostakovich
- division eubacteria
- division cynodontia
- division anthophyta
- distributor housing
- direct transmission
- diplomatic minister
- digitalis glycoside
- danish monetary unit
- dame sybil thorndike
- cyanocitta cristata
- crotalus mitchellii
- constantin brancusi
- commissaire maigret
- columbia university
- cognitive semantics
- chemical operations
- castanea mollissima
- capital of wisconsin
- capital of swaziland
- capital of minnesota
- capital of louisiana
- capital of indonesia
- capital of australia
- bush administration
- book of instructions
- blue ridge mountains
- banana passion fruit
- authoritarian state
- attestation service
- artistic production
- artemisia filifolia
- armoracia rusticana
- antispasmodic agent
- antipsychotic agent
- antineoplastic drug
- antagonistic muscle
- andrew dickson white
- anamnestic reaction
- amphibious aircraft
- amlodipine besylate
- air-to-ground missile
- aegean civilisation
- administrative body
- actinidia deliciosa
- winter olympic games
- white slime mushroom
- white fringed orchis
- west indian smallpox
- volumetric analysis
- vinegar joe stilwell
- vespertilio murinus
- vena supraorbitalis
- university of sussex
- university of oxford
- trusteeship council
- tropical rain forest
- trogium pulsatorium
- trisodium phosphate
- tremella fuciformis
- transmission system
- transitive verb form
- transfiguration day
- transfer of training
- topical anaesthetic
- topical anaesthesia
- tobacco mosaic virus
- time deposit account
- time-and-motion study
- thermosetting resin
- thermoplastic resin
- thermobia domestica
- thermionic emission
- theory of indicators
- thamnophis sirtalis
- thamnophis sauritus
- thamnophis proximus
- thalamostriate vein
- teucrium scorodonia
- territorial reserve
- taraktogenos kurzii
- taraktagenos kurzii
- tanacetum douglasii
- systema digestorium
- symplocus tinctoria
- swiss confederation
- suspended animation
- surjective function
- suborder tarsioidea
- suborder ruminantia
- suborder lacertilia
- striped button quail
- stress incontinence
- straight-line method
- stochastic variable
- stictopelia cuneata
- stereoscopic vision
- stellar association
- starvation acidosis
- stanford university
- stained-glass window
- st. ignatius of loyola
- st. christopher-nevis
- sporobolus poiretii
- spirit of turpentine
- spanish inquisition
- space-time continuum
- southern maidenhair
- solar magnetic field
- sodium thiosulphate
- sodium hypochlorite
- sociological theory
- smilax rotundifolia
- slip friction clutch
- sir ernst boris chain
- sir alfred hitchcock
- signal-to-noise ratio
- side-blotched lizard
- shortia galacifolia
- sexual relationship
- serratula tinctoria
- sentential function
- sensory deprivation
- sensorimotor region
- seminiferous tubule
- semiconductor diode
- selaginella eatonii
- segmentation cavity
- secondary dentition
- secobarbital sodium
- sao tome and principe
- sample distribution
- saint thomas aquinas
- saint teresa of avila
- sacrifice operation
- rhodanthe manglesii
- rhizopus stolonifer
- rhizomatous begonia
- rhizoctinia disease
- rhetorical question
- respiratory disease
- repulsorlift engine
- religious mysticism
- relative atomic mass
- regression equation
- registration number
- regional anesthesia
- real-time processing
- reactive depression
- reaction propulsion
- ratibida columnaris
- quadriphonic system
- pyrrhuloxia sinuata
- pylodictus olivaris
- pus-forming bacteria
- public relations man
- public presentation
- pterocarpus indicus
- psychotria capensis
- psoriatic arthritis
- pseudotaxus chienii
- prunus angustifolia
- prospero lambertini
- prosecuting officer
- propositional logic
- professional tennis
- prionotus carolinus
- prehistoric culture
- prairie golden aster
- potentilla anserina
- potassium hydroxide
- positive chemotaxis
- positional notation
- poncirus trifoliata
- polystichum braunii
- political scientist
- political commissar
- poephila castanotis
- platanus orientalis
- platanus acerifolia
- pimenta officinalis
- phragmites communis
- photogenic epilepsy
- pezophaps solitaria
- pesticide poisoning
- personal credit line
- periodontal disease
- penstemon rydbergii
- pedilanthus pavonis
- pediculosis capitis
- pedestrian crossing
- parathion poisoning
- paprilus alepidotus
- pancreatic fibrosis
- palestine authority
- oxytropis lambertii
- ornithopod dinosaur
- order ustilaginales
- order rickettsiales
- order polymastigina
- opisthocomus hoazin
- observation station
- normative economics
- normal distribution
- nonsocial infection
- non-christian priest
- nihilistic delusion
- newtonian mechanics
- neurotic depression
- negative chemotaxis
- national assistance
- nasogastric feeding
- myosotis scorpiodes
- myositis trichinosa
- multiplication sign
- multiple regression
- molecular biologist
- minor diatonic scale
- minoan civilisation
- mineral association
- minato ohashi bridge
- military commission
- military censorship
- microscopic anatomy
- metaphosphoric acid
- metabolic alkalosis
- merovingian dynasty
- menominee whitefish
- melicocca bijugatus
- medical institution
- marta brigit nilsson
- malathion poisoning
- malacosoma disstria
- major tranquilliser
- major diatonic scale
- magneto-optical disc
- machine translation
- loxostege similalis
- lobelia siphilitica
- livistona australis
- litocranius walleri
- lip synchronization
- lip synchronisation
- limnocryptes minima
- liliid monocot genus
- ligustrum japonicum
- lepiota cepaestipes
- lending institution
- legislative council
- learner's dictionary
- leaning tower of pisa
- lathyrus latifolius
- late-spring-blooming
- lactarius delicioso
- kolkwitzia amabilis
- kingdom protoctista
- keratosis nigricans
- kammon strait bridge
- junction transistor
- judicial separation
- joint chiefs of staff
- jessica lucy mitford
- jean francois millet
- japanese poinsettia
- italian honeysuckle
- isopyrum biternatum
- iron-storage disease
- ionization constant
- intravenous feeding
- internal combustion
- intermediate shroud
- interfacial tension
- insider information
- inorganic phosphate
- inorganic chemistry
- information science
- information measure
- inflectional suffix
- inflationary spiral
- inductive reasoning
- indirect expression
- in your birthday suit
- in one's birthday suit
- idiopathic disorder
- hysterical neurosis
- hypoplastic anaemia
- huntington's disease
- holocentrus bullisi
- hindu kush mountains
- hindostani language
- hibiscus moscheutos
- hesperis matronalis
- heat of dissociation
- have the distinction
- halicoeres radiatus
- haematobia irritans
- guilt by association
- graduation exercise
- gradable opposition
- glorious revolution
- gianbattista bodoni
- giambattista bodoni
- geostationary orbit
- genus trichodesmium
- genus septobasidium
- genus rhinonicteris
- genus pithecolobium
- genus hyacinthoides
- genus falcatifolium
- genus dicranopteris
- genus chorizagrotis
- genus centropristis
- genus actiniopteris
- genital personality
- gastroepiploic vein
- functional genomics
- fuchsia excorticata
- fringed loosestrife
- francois mitterrand
- favourable position
- fausto paolo sozzini
- family synodontidae
- family stromateidae
- family rhiptoglossa
- family relationship
- family orchestiidae
- family ceratopsidae
- family catostomidae
- family aulostomidae
- euclid's fourth axiom
- eptesicus serotinus
- epacris obtusifolia
- english hippocrates
- electrostatic field
- ecclesiastical robe
- ecclesiastical mode
- eastern indigo snake
- eastern catholicism
- east indian rosewood
- dryopteris goldiana
- dryopteris filix-mas
- dryopteris dilatata
- domesticated animal
- doctor of humanities
- division rhodophyta
- division phaeophyta
- division myxomycota
- division cyanophyta
- divine right of kings
- diversionary attack
- district of columbia
- dissociation energy
- discretionary trust
- dianthus latifolius
- deflationary spiral
- deep supporting fire
- deductive reasoning
- cytisus multiflorus
- cross-country skiing
- cross-country riding
- crisis intervention
- crataegus apiifolia
- corticospinal tract
- corrosive sublimate
- coreopsis tinctoria
- cordyline australis
- coptis groenlandica
- conversion reaction
- conversion hysteria
- continuing trespass
- contagious abortion
- conjugal visitation
- congenital disorder
- conflict of interest
- computer simulation
- complex preposition
- competitor analysis
- communist manifesto
- collective security
- cognitive scientist
- clianthus speciosus
- clematis versicolor
- class hepaticopsida
- class ginkgophytina
- citrus aurantifolia
- citroncirus webberi
- cirsium lanceolatum
- christian schonbein
- choriotis australis
- cholesterosis cutis
- cheilanthes eatonii
- charles william post
- cercis occidentalis
- ceratotherium simum
- celtis occidentalis
- celestial longitude
- catherine i of russia
- cassia occidentalis
- cassia augustifolia
- carolingian dynasty
- capital of singapore
- capital of san marino
- capital of costa rica
- calostoma ravenelii
- brush-tail porcupine
- broadcasting studio
- british labour party
- brevoortia tyrannis
- born-again christian
- bird-footed dinosaur
- binge-vomit syndrome
- bidens trichosperma
- automobile industry
- autoimmune disorder
- autoimmune diabetes
- asterid dicot family
- associative aphasia
- associate in nursing
- asian tiger mosquito
- arteria ethmoidalis
- arteria communicans
- artemisia abrotanum
- aristotelia serrata
- aristolochia durior
- arisaema dracontium
- apothecaries' weight
- anointing of the sick
- angoumois grain moth
- anarchist communism
- alsophila pometaria
- alan mathison turing
- agitated depression
- aegilops triuncalis
- admiralty mountains
- acute brain disorder
- acoustic resistance
- acoustic projection
- acoustic absorption
