Dictionary Only:
Profanity Off:

18-Letter Words Containing: I,O,S,S,T,U

 (In Any Order)
There are 65 18 letter words, 225 18 letter phrases and 0 18 letter abbr's with I,O,S,S,T,U in.

Best Scoring 18 Letter Words With: I,O,S,S,T,U

Expand?WordSave?LengthUsagePointsType
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 (65)
transubstantiationverisimilitudinousunprofitablenessesuniformitarianismsultrasophisticatedultraconservativesultraconservatismstriboluminescencestransilluminationssupranationalitiessupersophisticatedsuperminicomputerssupercivilizationssuperadministratorsubclassificationssubcategorizationsstructuralizationsstereoregularitiessomnambulisticallysimultaneousnessesrevascularizationsredistributionistsreconstructionistsreconstructionismsrambunctiousnessesquestionablenessesquasiperiodicitiespseudotuberculosispertinaciousnessesoverindustrializesostentatiousnessesnondestructivenessneurotransmissionsneuropsychologistsneuropsychiatristsneurophysiologistsmultifariousnessesmeretriciousnessesinstitutionalisingindustrializationsincombustibilitiesimmunosuppressantsimmunopathologistshydrometallurgistsgranulocytopoiesisgranulocytopoiesesethnomusicologistsdisputatiousnessesdiscourteousnessesdeconstructionistscountersuggestionscounterstrategistscounteraggressionscounteraccusationsconsubstantiationsconstructivenessesconstitutionalizesconstitutionalistsconstitutionalismsconsequentialitiescommensurabilitiesaustralopithecinesunsatisfactorinessunquestionablenesspsychotherapeutics
Phrases (225)
theodosius the greattendonous synovitissupervisory routinesuborder anisopterasolidago spathulatasolid body substancesolenostemon blumeisir arthur john evanssecurity consultantpopulus tremuloidespooecetes gramineuspolianthes tuberosapoisonous substanceorthotomus sutoriusoil-industry analystoceanites oceanicusnewspaper columnistneuropterous insectmusical compositionmusculus temporalishouses of parliamentherpestes ichneumongustatory sensationgeorge westinghousegenus struthiomimusgenus recurvirostragenus melopsittacusgenus eschscholtziadistributor housingdisreputable personconstantin brancusicolocasia esculentabush administrationbook of instructionsbanana passion fruitartocarpus communisapodemus sylvaticusantagonistic muscleamaranthus spinosusair-to-ground missilewrit of habeas corpuswhite slime mushroomwestern mountain ashvolumetric analysisvespertilio murinusvena supraorbitalisvascular prosthesisunspoken accusationuniversity of sussexunited states dollartyrannus vociferanstussock caterpillartrusteeship counciltrisodium phosphatetobacco mosaic virusthujopsis dolobratathomas gainsboroughtheodor seuss geiselthamnophis sauritusthamnophis proximustextual scholarshipsystema urogenitalesystema digestoriumsystem of numerationsymplocus tinctoriasuspended animationsuborder tarsioideasuborder ceratopsiasubclass actinopodastructural genomicssteganopus tricolorstanford universityst. ignatius of loyolaspotsylvania countysporobolus poiretiispanish inquisitionsouthern hemispheresouth celestial polesonora semiannulatasodium thiosulphateshort saphenous veinsexual relationshipseminiferous tubulesecobarbital sodiumsciaenops ocellatussaratoga spittlebugsample distributionsaint thomas aquinasrhizopus stoloniferreproductive systemreligious mysticismregression equationquadriphonic systemquadraphonic systempylodictus olivarispterocarpus indicuspsocopterous insectpseudotaxus chieniiprunus angustifoliaprumnopitys elegansprionotus carolinuspotos caudivolvuluspotassium hydroxidepotassium carbonatepotamogeton crispuspomatomus saltatrixplatanus orientalispinnotheres ostreumphragmites communispedilanthus pavonispediculosis capitispaul bustill robesonparochetus communispaprilus alepidotusorthopterous insectorder ustilaginalesopisthocomus hoazinomphalotus illudensnihilistic delusionneurotic depressionnervous prostrationmusculus teres minormusculus pectoralismusculus deltoideusmusculus buccinatormultiple regressionmountain watercresslivistona australislittle spotted skunkleptopteris superbaleontocebus rosalialeontocebus oedipuslathyrus latifoliuslactarius deliciosojunction transistorjessica lucy mitfordjatropha stimulosusin one's birthday suithysterical neurosishuntington's diseaseholocentrus bullisihindu kush mountainshibiscus moscheutoshelleborus foetidushalicoeres radiatusguilt by associationgreat saphenous veingenyonemus lineatusgenus zinjanthropusgenus trichoglossusgenus trichodesmiumgenus strobilomycesgenus stephanomeriagenus septobasidiumgenus schizopetalongenus rhinonicterisgenus pseudowinteragenus pleurothallisgenus platypoecilusgenus lepidothamnusgenus lagerstroemiagenus lactobacillusgenus ichthyosaurusgenus hyacinthoidesgenus ginglymostomagenus gasterophilusgenus dicranopterisgenus clethrionomysgenus chorizagrotisgenus chilomycterusgenus cercopithecusgenus centropristisgenus calamagrostisgenus anoectochilusgenus actiniopterisfausto paolo sozzinieuarctos americanuseptesicus serotinusepacris obtusifoliaeastern fox squirreldouble-breasted suitdiscretionary trustdicamptodon ensatusdianthus latifoliusdesmodium tortuosumdaucus carota sativacytisus multifloruscyclopes didactyluscutaneous sensationcross-country skiingcross-country ridingcourt of saint james'scorrosive sublimatecordyline australiscordia gerascanthuscontopus sordiduluscontinuing trespassconduction deafnesscommunist manifestoclianthus speciosusclaudius ptolemaeusclass holothuroideachrysolophus pictuschoriotis australischolesterosis cutiscatherine i of russiacassia augustifoliabroadcasting studioboy scouts of americabocconia frutescensblissus leucopterusbarometric pressureaustrotaxus spicataastroloma humifusumassociate in nursingasian tiger mosquitoarticulatory systemaristarchus of samosarisaema atrorubensanarchist communismaegilops triuncalisadult-onset diabetesacoustic resistanceacoustic absorptionabsorption spectrum
WordDB Icon
WordDB
United Kingdom
Download the WordDB app directly on your home screen for instant access. No App Store necessary, less than 1MB storage, always up-to-date and secure.
1.
Tap on share button
2.
Tap on Add To Home Screenadd button
3.
Find WordDB App Icon on your home screen