18-Letter Words That Start With: O
There are 34 18-letter words,
76 18-letter phrases and
0 18-letter abbr's that start with
O.
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| Rank | Word | Save? | Length | Usage | Points | Type | |
|---|---|---|---|---|---|---|---|
We couldn't find any valid Scrabble EU 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 (34)
oversimplificationoverrepresentationobstreperousnessesophthalmologicallyopinionativenessesorganophosphorusesorthogonalizationsorthopsychiatristsoscillographicallyostentatiousnessesotherworldlinessesovercapitalisationovercentralizationovercapitalizationoverclassificationovercommercializedovercommercializesovercommunicationsoverconcentrationsoverembellishmentsorder-chenopodialesoverextrapolationsoverfertilizationsovergeneralizationoveridentificationoverindebtednessesoverindustrializedoverindustrializesoveroptimisticallyoverprotectivenessoverspecializationovolactovegetarianoverinterpretationoxidation-reductionPhrases (76)
oceanites oceanicusorthotomus sutoriusottmar mergenthaleron an irregular basisorder passeriformesoven stuffer roasteroscar hammerstein iioysters rockefellerorder sarcosporidiaorder sarracenialesorder sauropterygiaodocoileus hemionusorder ciconiiformesorder columbiformesorder trogoniformesoil-industry analystone thousand millionorder eubacterialesoenothera fruticosaostrya carpinifoliaoperating procedureoccupational hazardorder ichthyosauriaold italian languageorder mycrosporidiaoxydendrum arboreumomphalotus illudensopisthocomus hoazinold world coral snakeonopordon acanthiumold world flycatcheronopordum acanthiumoriental arborvitaeoriental bush cherryoxytropis lambertiiorder plantaginalesorder plumbaginalesorder polymastiginaorder actinomyxidiaorder psilophytalesover-the-counter drugobservation stationorder rickettsialesorder aspergillalesorder bennettitalesorder solenichthyesorder solenogastresorder stegocephaliaolfactory sensationorder synentognathiorder temnospondyliorder colymbiformesopen-air marketplaceorder coraciiformesorder tubulidentataornithopod dinosaurorder cypriniformesorder ustilaginalesopuntia lindheimeriorder endomycetalesorder ephemeropteraoak-leaved goosefootorder falconiformesokeechobee waterwayoreamnos americanusorthochromatic filmorder haemosporidiaorder haplosporidiaoperating statementorange horseshoe batoutput-to-input ratiooperations researchold english sheepdogold frisian languageorthopterous insectorder marchantiales
