Dictionary Only:
Profanity Off:

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

 (In Any Order)
There are 142 18 letter words, 325 18 letter phrases and 0 18 letter abbr's with O,O,N,I,S,T in.

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

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 (142)
telecommunicationsdisproportionatelygastroenterologisttransmogrificationoversimplificationoverrepresentationhyperaldosteronismtrichloroethylenestransistorizationstransformationallysubcategorizationssphygmomanometriessemidomesticationssedimentologicallyribonucleoproteinsrenationalizationsrehospitalizationsreconstructionistsreconstructionismsquattuordecillionsprovincializationspronounceabilitiespostpsychoanalyticpolyesterificationpolyacrylonitrilesphotosyntheticallyphotosensitizationphotosensitivitiesphotoreproductionsphotoreactivationsphotomorphogenesisphotodissociationsphotodisintegratesphotodisintegratedphotodecompositionoverspecializationoverprotectivenessoverfertilizationsoverextrapolationsoverconcentrationsovercommunicationsoverclassificationotherworldlinessesostentatiousnessesorthogonalizationsopinionativenessesnonrevolutionariesnoninterventionistnonfraternizationsnondiscriminationsnoncooperationistsnoncomparabilitiesnoncommutativitiesnonanthropologistsneurotransmissionsneuropsychologistsneurophysiologistsmonochromaticitiesmineralocorticoidsmicroreproductionsmicromanipulationsmicroencapsulationmicrodensitometricmicrodensitometersmethylprednisolonemethemoglobinemiasmelodramatizationsintrospectionisticintercolumniationsimpersonalizationsimmunopathologistsimmunohematologistimmunohematologieshyposensitizationshypophysectomizinghyperpolarizationshemoglobinopathiesgranulocytopoiesisgranulocytopoiesesglottochronologiesgastroenterologiesfractionalizationsevapotranspirationethnomusicologistsethnomusicologicalethnomethodologistethnomethodologieselectroretinogramselectrodesiccationelectrodepositionsdisproportionationdisproportionatingdiscourteousnessesdisconsolatenessesdihydroergotaminesdephosphorylationsdepersonalizationsdenominationalismsdendrochronologistdenationalizationsdemythologizationsdehydrochlorinatesdeconstructionistscountersuggestionscounterrevolutionscounterquestioningcounterinstitutioncounterconventionscounteraggressionscounteradaptationscounteraccusationsconversationalistscontradistinctionsconsubstantiationsconstitutionalizesconstitutionalizedconstitutionalistsconstitutionalismscongregationalistscongregationalismsconceptualizationscompanionabilitiescommercializationsbourgeoisificationbloodthirstinessesbiotransformationsbacteriorhodopsinsarchaeoastronomiesaerothermodynamicsunconstitutionallytriphosphopyridineterritorialisationrhinolaryngologistovercapitalisationnonprognosticativeglomerulonephritisfibrocartilaginouscytoarchitectonicscross-fertilizationcross-fertilisationcorrosion-resistantadenocarcinomatous
Phrases (325)
woodwind instrumentwashington monumentvoiceless consonantthird epistle of johnthird epistel of johntendonous synovitistelevision reportertangible possessionsupervisory routinesuborder anisopterasolid body substancesolenostemon blumeisocial organizationsocial organisationsexual reproductionscorpio the scorpionpriority processingpositive reinforcerpooecetes gramineuspolish monetary unitpolianthes tuberosapoisonous substancepiano transcriptionp-type semiconductorostrya carpinifoliaorder trogoniformesone thousand millionoenothera fruticosaoceanites oceanicusneuropterous insectnational censorshipnarcotic antagonistmusical compositionminister of religionmaterial possessionhypertonic solutionhouses of parliamenthistorical documentheat of vaporisationhealth professionalgustatory sensationgeorge westinghousegenus dimorphothecafunctional disorderfricative consonantfirst epistle of johnfederation of tribesessential conditionelectronics companyelectron microscopeelection commissioneconomic assistancedivision cynodontiadivision anthophytadistributor housingcouncil of constanceconstruction workerconservation of masscolocasia esculentaclass dicotyledonaechemical operationscapital of wisconsincapital of minnesotacapital of louisianacapital of indonesiabook of lamentationsbook of instructionsblood extravasationastronomy satelliteascension of the lordartocarpus communisartistic productionair-to-ground missileagropyron cristatumacoustic gramophoneaccordance of rightszero-coupon securitywebbing clothes mothvena stylomastoideaunspoken accusationuniversity of oxfordtropical rain foresttoxic shock syndrometime deposit accounttime-and-motion studythreshold operationthomas stearns eliotthomas gainsboroughthirst for knowledgethermionic emissiontheory of indicatorsthamnophis proximusteucrium scorodoniatelephone extensiontaraktogenos kurziisystem of numerationsynaptomys borealissymplocus tinctoriaswiss confederationsweet-potato ring rotsuborder odontocetisubclass actinopodastereoscopic visionstereophonic systemstellar associationsteganopus tricolorstations of the crossstarvation acidosisst. ignatius of loyolaspotsylvania countysphenoidal fontanelsphenoid fontanellesouthern yellow pinesouthern bog lemmingsonora semiannulatasocial anthropologysmoking compartmentsmilax rotundifoliasignal-to-noise ratioshort saphenous veinsex-change operationsensory deprivationsensorimotor regionsemiconductor diodesecondary educationsecondary dentitionsciaenops ocellatussao tome and principesacrifice operationrocky mountain sheeprichard john robertsrhus toxicodenedronrhizopus stoloniferrhizomatous begoniarhetorical questionrepublic of botswanaregression equationreaction propulsionpsocopterous insectprospero lambertiniprosecuting officerpropositional logicproportional samplepromotional expenseprofessional tennisprionotus carolinuspresident rooseveltpower-station workerpotassium carbonatepotamogeton crispuspositional notationportal hypertensionponcirus trifoliatapoephila castanotisplains pocket gopherpinnotheres ostreumphotogenic epilepsyphonological systempesticide poisoningperiodontal diseasepaul bustill robesonparochetus communisparathion poisoningorthopterous insectornithopod dinosaurorder temnospondyliorder synentognathiorder solenichthyesorder polymastiginaopisthocomus hoazinoperations researchomphalotus illudensolfactory sensationobservation stationnorth celestial polenormative economicsnormal distributionnonvolatile storagenonsocial infectionnon-volatile storagenewtonian telescopenewton's law of motionneurotic depressionnervous prostrationn-type semiconductormyositis trichinosamountain spleenwortmother-in-law's tonguemontia lamprospermaminor diatonic scaleminoan civilisationmineral associationminato ohashi bridgemilitary commissionmicroscopic anatomymexican pocket mousemaster of ceremoniesmarquis de condorcetmalathion poisoningmajor diatonic scalemagneto-optical discmacroscopic anatomylip synchronizationlip synchronisationliliid monocot genusleontocebus rosalialeontocebus oedipusleaning tower of pisalate-spring-bloominglactose intolerancekingdom protoctistajunction transistorjoint chiefs of staffiron-storage diseaseionization constantinternal combustioninsider informationinorganic phosphateinformation scienceinformation measurehydropower industryhousing developmentholocentrus bullisiheat of dissociationheat of condensationguilt by associationgregorian telescopegradable oppositiongoods and service taxglorious revolutiongianbattista bodonigiambattista bodonigeostationary orbitgenus trichoglossusgenus toxicodendrongenus strobilomycesgenus schizopetalongenus pithecolobiumgenus gomphotheriumgenus ginglymostomagenus clethrionomysgenus chorizagrotisgenus anoectochilusgastroepiploic veingastrocolic omentumfunctional genomicsfringed loosestrifefranklin d. rooseveltforward transactionflorida smoothhoundfirst baron tennysonfavourable positionfausto paolo sozzinifast of the firstbornfamily synodontidaeestrogen antagonistepistle to the romanselectron microscopyeast indian rosewooddryopteris goldianadoctor of humanitiesdivision rhodophytadivision phaeophytadivision myxomycotadivision cyanophytadissociation energydicamptodon ensatusdental orthopaedicsde facto segregationdavidson's penstemoncystopteris montanacutaneous sensationcross-country skiingcross-country ridingcourt of saint james'scotoneaster dammericorticospinal tractcortaderia selloanacorporal punishmentcoronary thrombosiscoreopsis tinctoriacoptis groenlandicaconversion reactionconversion hysteriacontract of adhesioncontopus sordiduluscontagious abortionconjugal visitationcongenital disorderconflict of interestconfederate soldierconduction deafnesscomputer simulationcomplex prepositioncompetitor analysiscompassionate leavecommunist manifestocoluber constrictorclass dicotyledoneschinese forget-me-notchaenopsis ocellatacapital of singaporecapital of san marinocalostoma raveneliibroadcasting studiobrevoortia tyrannisbottle-nosed dolphinbocconia frutescensbird-footed dinosaurbinge-vomit syndromebernese mountain dogball-and-socket jointautomobile industryautoimmune disorderassistant professorasian tiger mosquitoanointing of the sickangoumois grain mothalveolar resorptionaffricate consonantacoustic projectionacoustic phenomenonacoustic absorptionacentric chromosomeabsorption 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