20-Letter Words Containing: I,O,I
(In Any Order)
There are 106 20 letter words,
845 20 letter phrases and
0 20 letter abbr's with
I,O,I in.
Best Scoring 20 Letter Words With: I,O,I
| Expand? | Word | Save? | Length | Usage | Points | Type | |
|---|---|---|---|---|---|---|---|
We couldn't find any valid Scrabble US words with a length of 20. Try changing the version of the game.
Tip: Scrabble EU allows far more words than US! | |||||||
All 20 Letter Words
Words (106)
compartmentalizationoverenthusiasticallyinstitutionalizationanthropomorphizationinternationalizationunsatisfactorinessesuncompromisingnessesultrasegregationistsultrarevolutionariesultramicroscopicallyultracentrifugationstransformationalistssuperspecializationsspectroheliographiesrepresentationalistsrepresentationalismsreinstitutionalizingreindustrializationsreconceptualizationsradiopharmaceuticalsradioimmunoassayablepseudosophisticationprofessionalizationspolyphiloprogenitivephotointerpretationsphotodisintegrationsphosphatidylcholinesphiloprogenitivenessphenylthiocarbamidesparathyroidectomizedoverintellectualizesoverintellectualizedoverdifferentiationsnondenominationalismneuropsychiatricallyneurophysiologicallyneuroendocrinologistneuroendocrinologiesmischaracterizationsmicrophotometricallymicropaleontologistsmicropaleontologicalmicrominiaturizationmicroelectrophoreticmicroelectrophoresismicrocrystallinitiesmagnetofluiddynamicskeratoconjunctivitesirreconcilablenessesinterstratificationsintellectualizationsinconsiderablenessesinconsequentialitiesincomprehensiblenessincommensurabilitiesimmunoprecipitationsimmunocytochemicallyhyperparathyroidismshypercoagulabilitieshydrochlorothiazideshistocompatibilitiesglomerulonephritidesencephalomyocarditiselectroretinographicelectrophysiologistselectrophysiologicaldimethylnitrosaminesdepartmentalizationsdeoxyribonucleotidesdeinstitutionalizingdeindustrializationsdehydrochlorinationscytodifferentiationscountermobilizationscounterintelligencescounterconditioningsconventionalizationscontradistinguishingantifluoridationistsanticonservationistsantiauthoritarianismanthropocentricitiesadrenocorticotropinsadrenocorticosteroidsemiautobiographicalpseudohermaphroditicnoninstitutionalizednoninstitutionalisednephroangiosclerosiskeratoconjunctivitisiodochlorhydroxyquininternationalisationincontrovertiblenessimmunohistochemistryhyperlipoproteinemiahyperadrenocorticismhistoincompatibilityheterobasidiomyceteselectrocardiographicdestructive-metaboliccounterrevolutionistcounter-revolutionistcompartmentalisationadrenocorticotrophinadrenocorticotrophicabetalipoproteinemiaPhrases (845)
woodrow wilson guthriewilliam wilkie collinswilliam stanley jevonswilliam rowan hamiltonwilliam lloyd garrisonwilliam le baron jenneywilliam hyde wollastonwilliam henry harrisonvladimir ilich ulyanovvirgil garnett thomsonvena brachiocephalicavaricella zoster virusuniversity of nebraskaunabridged dictionaryukranian monetary unittwo-dimensional figuretunisian monetary unitthomas lanier williamstheatrical productiontelopea speciosissimasuperfamily coccoideasuborder strepsirhinisuborder myxiniformessubclass lepidosauriasubclass commelinidaesphenisciform seabirdsolidago multiradiatasoftware optimizationsocial justice warriorsir karl raimund poppersingle-valued functionsimple harmonic motionsignature recognitionselective informationsedative-hypnotic drugsecond coming of christscipio africanus majorsaponaria officinalissaccharum officinarumromanian monetary unitrocky mountain bighornrobert william servicerichard jordan gatlingrhizopogon idahoensisresurrection of christresident commissionerreconstruction periodracial discriminationquantitative relationpseudotsuga menziesiiprumnopitys taxifoliaprotective colorationprofessional relationprinciple of parsimonyprescription medicinepractical applicationpollachius pollachiuspolitically incorrectpolitical orientationplatanus occidentalisplasminogen activatorpierre simon de laplacephylogenetic relationphotographic emulsionperuvian monetary unitpersonality inventorypersonal relationshippass with flying colorspara aminobenzoic acidorder sphenisciformesorder mycelia steriliaorder accipitriformesobstruction of justicenymphicus hollandicusnutritionist's calorienigerian monetary unitneisseria gonorrhoeaenasturtium officinalemultilinear evolutionmilitary installationmathematical relationmasticophis flagellummarket capitalisationmalawian monetary unitmadonna louise cicconeluscinia megarhynchosludwig mies van der rohelophophora williamsiiliving accommodationslinguistic competencelevisticum officinalelateral epicondylitisjudgement of dismissaljean-baptiste poquelinjakob ludwig karl grimmislamic calendar monthinterrogative pronouninterphalangeal jointinstruction executioninformation gatheringindochinese peninsulaindirect transmissionhomolosine projectionhelladic civilizationhawaiian honeycreeperhans christian oerstedhamamelid dicot familyglycerol tripalmitategleditsia triacanthosgiovanni da verrazzanogeorges henri lemaitregeorge frideric handelgeorg philipp telemanngeographic expeditiongenus phoenicophoriumfriendly relationshipfrederico garcia lorcafouquieria columnarisforficula auriculariafederation of malaysiafamily tetraodontidaefamily tachyglossidaefamily pseudococcidaefamily passifloraceaefamily myrmeleontidaefamily hippopotamidaefamily gasterosteidaefamily dermochelyidaefamily chenopodiaceaefamily chaetodontidaefamily antilocapridaeeuphorbia pulcherrimaestonian monetary unitemotional disturbanceeleocharis aciculariselectric refrigeratoreicosapentaenoic acidegyptian monetary unitedward williams morleyecological successiondivision tracheophytadisplacement reactiondictionary definitiondegenerative disorderdandie dinmont terrierctenocephalides caniscortinarius violaceuscontradiction in termsconsecutive operationcomparative anatomistcommunity of interestscommunication channelcommercial instrumentcommercial enterpriseclyde william tombaughclassification systemcinnamomum zeylanicumchristopher isherwoodchlamydia trachomatischaradrius morinelluscentropus phasianinuscase-to-infection ratiocarter administrationcardinal compass pointcaprimulgus vociferuscapital of switzerlandcapital of south africacapital of sierra leonecapital of saudi arabiacapital of rhode islandcapital of mississippicapital of connecticutcapital of afghanistancalendula officinalisbusiness relationshipbusiness organizationbusiness organisationbritish pound sterlingbotaurus lentiginosusbolivian monetary unitblue ribbon commissionbehavior modificationbasidiomycetous fungiaustrian monetary unitatmospheric conditionartemisia californicaarmenian monetary unitarcheological remainsappalachian mountainsantilocapra americanaanemopsis californicaamyloid protein plaqueamsinckia grandifloraamelanchier alnifoliaambrose gwinett bierceambloplites rupestrisalice malsenior walkeralgerian monetary unitalexander iii of russiaalbanian monetary unitagropyron intermediumadenosine diphosphateacquisition agreementabortion-inducing drugaboriginal australianzalophus californicusyosemite national parkyellow-leaf sickle pineximenesia encelioidesxenorhyncus asiaticusxanthoma disseminatumwyethia helianthoideswritten communicationwolstonian glaciationwire-haired fox terrierwind cave national parkwilliam richard morriswilliam nunn lipscom jr.william frederick codywilliam felton russellwilliam dudley haywoodwilliam benjamin hoganwillard van orman quinewhite dog's-tooth violetvolvariella bombycinavoice in the wildernessvitelline circulationviola reichenbachianavincetoxicum hirsutumvigdis finnbogadottirvestibule of the vaginavermillion flycatcherverbesina encelioidesvena labialis superiorvena labialis inferiorvena facialis anteriorvalerianella olitoriavaleriana officinalisvaccinium macrocarponvaccinium caespitosumustilaginoidea virensuniversity of michiganuniversal propositionunited states air forceunited church of christungradable oppositionultraviolet radiationtyphoid bacteriophagetwelve tribes of israelturning and boring milltropical pitcher planttriostium perfoliatumtrichomanes speciosumtrichomanes reniformetransversus abdoministranscortical aphasiatraditional knowledgetrachinotus carolinustoxic industrial wastetonsilla pharyngealistolypeutes tricinctusthird battle of panipatthermionic vacuum tubetheory of dissociationthe admirable crichtontelevision-camera tubetelevision pickup tubetelevision newscastertamiasciurus douglasitalker identificationsysteme internationalsystema respiratoriumsympathetic vibrationsylvilagus floridanusswietinia macrophyllaswainsona grandifloraswainsona galegifoliasurvival of the fittestsuperior labial arterysuperior cerebral veinsuperfamily tineoideasuperfamily muscoideasuborder plesiosauriasubliminal perceptionsubfamily taxodiaceaesubfamily mimosoideaesubfamily hydromyinaesubclass zoomastiginasubclass telosporidiasteatornis caripensisstatute of limitationsstatistical procedurestandard transmissionstaffordshire terriersplit-half correlationspiranthes porrifoliaspecial-interest groupspartina cynosuroidessouth american sea lionsource of illuminationsomalian monetary unitsolidago sempervirenssoleirolia soleiroliisoftware optimisationsocial stratificationsocial security numbersocial anthropologistsmiledon californicusslip-tongue log skiddersisymbrium officinalesir oliver joseph lodgesir james young simpsonsir geoffrey wilkinsonsinusoidal projectionsiderochrestic anemiasideroblastic anaemiasexual discriminationsemiautomatic firearmsecond vatican councilseborrheic dermatitisscouting organizationscleroderma flavidiumscintillation counterscintillating scotomaschizopetalon walkerischeduled territoriessceloglaux albifaciesscaphiopus bombifronssaxifraga stoloniferasanvitalia procumbenssanitation departmentsalvinia rotundifoliasalvelinus fontinalissalpichroa rhomboideasalah al-din battalionssaint francis of assisirumohra adiantiformisrubus idaeus strigosusriot control operationrevolutions per minuterespiratory infectionrespiratory alkalosisrequired reserve ratiorepublic of uzbekistanrepublic of tajikistanrepublic of mozambiquereligious orientationrecreational facilityreconnaissance by firereciprocal inhibitionreagan administrationrabbit-eared bandicootquercus ellipsoidalispyroelectric materialpyridoxine 5'-phosphatepurse-string operationpulmonary circulationpublius vergilius maropublic utility companypsychopsis kramerianapsychological sciencepsychic communicationpseudococcus fragilisproportional samplingprivate security forceprincipality of monacoprincipality of achaeaprince peter kropotkinprince fumimaro konoyeprimary solid solutionprimary color for lightprice-to-earnings ratiopotassium-argon datingpotassium bicarbonateposttraumatic amnesiaposterior labial veinspostal rate commissionpositive-degree adverbpositive magnetic polepopulation commissionpolytechnic institutepolystichum setiferumpolystichum lonchitispolitical correctnesspoinciana pulcherrimapoecilogale albinuchapodocarpus latifoliusplectrophenax nivalisplatycerium alcicorneplanographic printingpiptadenia macrocarpapilularia globuliferapilosella officinarumpiezoelectric crystalphysiological anatomyphylloxera vitifoleaephototrophic bacteriaphotographic materialphlebotomus papatasiiphilip warren andersonphilip dormer stanhopephalaropus fulicariusphalaenopsis amabilispersonal line of creditperitonsillar abscessperisoreus canadensispercussion instrumentpenstemon linarioidespenicillin v potassiumpellicularia kolerogapassiflora mollissimapassiflora maliformispassiflora laurifoliaparticulate radiationparietomastoid sutureparietal placentationoverflow incontinenceortilis vetula macalliorthopedic foot insoleorthogonal oppositionorganic brain syndromeoreortyx picta palmeriorder torpediniformesorder pectinibranchiaorder of saint benedictorder cycadofilicalesorder cilioflagellataorder charadriiformesorder aristolochialesonobrychis viciifoliaone hundred thirty-fiveomnidirectional rangeold world white pelicanoceanic whitetip sharkobject of a prepositionnycticorax nycticoraxnurse-patient relationnotropis atherinoidesnorthwest territoriesnorth island edelweissnorth atlantic councilnonviolent resistancenonrestrictive clausenonlinear correlationniels henrik david bohrneurological disordernephrolepis pectinatanegotiable instrumentnegative magnetic polenecrotizing enteritisnecrobiosis lipoidicanarthecium ossifragumnaphthalene poisoningmyrmecobius fasciatusmyocardial infarctionmyeloblastic leukemiamusical accompanimentmumification necrosismoving-coil microphonemountain standard timemountain lady's slippermortise-and-tenon jointmonoblastic leukaemiamodified american planmirabilis californicamildred ella didriksonmicrosorium punctatummicropterus salmoidesmeriones unguiculatusmenyanthes trifoliatamelilotus officinalismegaloblastic anaemiamedial geniculate bodymaximilian's sunflowermatrix multiplicationmatricaria chamomillamathematical notationmathematical functionmasticophis lateralismarketing informationmarket capitalizationmarginal placentationmaidenhair spleenwortmagnoliid dicot familymagnetic dipole momentmagnesium bicarbonatemacrotus californicusmacroclemys temminckimacrocheira kaempferilysichiton americanumlyrurus mlokosiewiczilygodium microphyllumlow-birth-weight infantlouis victor de broglielouis eugene felix neellonicera sempervirenslonicera periclymenumlofortyx californicuslipoid granulomatosisligustrum ovalifoliumleptotyphlops humilislepidochelys olivacealeonotis nepetaefolialeonid ilyich brezhnevlawyer-client relationlavandula officinaliskosteletzya virginicakingdom of saudi arabiakingdom of northumbriakinetic theory of gasesketosis-prone diabeteskennedy internationalkaspar friedrich wolffjudgment of convictionjournalist's privilegejoseph rudyard kiplingisovolumetric processisidor feinstein stoneiron deficiency anemiaintravenous injectionintransitive verb formintradermal injectioninternational affairsinternal auditory veinintelligence quotientinhalation anestheticinhalation anesthesiainferior rectus muscleinferior labial arteryinferior cerebral veinindustrial revolutionindustrial psychologyinduction acceleratorinconvenience oneselfinclination of an orbitincentive stock optionimmediate constituentimmaculate conceptionigor yevgeneevich tammidentity verificationhyperkinetic syndromehylophylax naevioideshydrofluosilicic acidhydroelectric turbinehydnocarpus wightianahyacinthus orientalishorizontal stabilizerhorizontal stabiliserhistiocytic leukaemiahippodamia convergenshimantopus himantopushillary rodham clintonhibiscus rosa-sinensishexalectris warnockiiheteroclitic antibodyhermann wilhelm goringheritiera macrophyllahelleborus orientalishelladic civilisationheliocentric parallaxhelianthus petiolarisheinrich theodor boellheinrich rudolph hertzheat of solidificationharpullia cupanioideshalicoeres bivittatusgyromitra californicagypsophila paniculatagutierrezia sarothraeguillaume apollinairegriselinia littoralisgridiron-tailed lizardgregory goodwin pincusgranulocytic leukemiagorilla gorilla graurignaeus julius agricolagiovanni schiaparelligiovanni di bernardonegiovanni battista cibogeranium richardsoniigeorgian monetary unitgeorge william russellgeorg friedrich handelgeometric progressiongenus hippoglossoidesgenus aspidophoroidesgentiana quinquefoliagaussian distributiongalvanic skin responsegaius cassius longinusfunctional illiteratefriedrich anton mesmerfriction yielding propfrederick moore vinsonfrederic william goudyform genus rhizoctiniaflowering wintergreenflindersia schottianafixed-combination drugfirst council of nicaeafinancial institutionfield press censorshipfibrous-rooted begoniafiber optic microphoneferdinand the catholicfeast of the dedicationfamily trichodontidaefamily titanosauridaefamily tetragoniaceaefamily tecophilaeaceafamily strophariaceaefamily stercorariidaefamily scyliorhinidaefamily scombresocidaefamily rhodymeniaceaefamily rhizophoraceaefamily rhinocerotidaefamily rhincodontidaefamily psilophytaceaefamily procellariidaefamily porcellionidaefamily pontederiaceaefamily pleuronectidaefamily plethodontidaefamily phyllostomidaefamily peripatopsidaefamily pelecanoididaefamily ostraciontidaefamily osteoglossidaefamily opisthocomidaefamily ogcocephalidaefamily odontaspididaefamily mycetophylidaefamily micrococcaceaefamily megalosauridaefamily megalonychidaefamily lophosoriaceaefamily leiopelmatidaefamily kalotermitidaefamily iguanodontidaefamily hypodermatidaefamily hyperodontidaefamily hydrochoeridaefamily hipposideridaefamily helodermatidaefamily haloragidaceaefamily haemoproteidaefamily haematopodidaefamily gonorhynchidaefamily globigerinidaefamily fouquieriaceaefamily flacourtiaceaefamily erethizontidaefamily edaphosauridaefamily discoglossidaefamily daubentoniidaefamily cynocephalidaefamily cryptocercidaefamily cortinariaceaefamily chamaeleonidaefamily ceratodontidaefamily caprifoliaceaefamily belostomatidaefamily batrachoididaefamily bacteroidaceaefamily athiorhodaceaefamily ambystomatidaeexecutor-heir relationeuphorbia helioscopiaeuphorbia cyparissiaseupatorium cannabinumeucalyptus citriodoraeucalypt tereticorniseschrichtius robustuseschrichtius gibbosuserythronium dens-caniserythrina vespertilioerigonum fasciculatumeragrostic abyssinicaepipactis helleborineenvironmental scienceenteric-coated aspirinenglish cocker spanielendometrial carcinomaendamoeba histolyticaempiricist philosophyelectrostatic printerelectrostatic machineelectronic transistorelectronic instrumentelectronic dictionaryelectrical conductionelectric dipole momentedith giovanna gassioneconomic mobilizationeconomic mobilisationechinochloa crusgalliechinocactus grusoniidwarf golden chinkapindryopteris oreopterisdryopteris marginalisdoxepin hydrochloridedoubly transitive verbdomestic silkworm mothdolichonyx oryzivorusdoctoral dissertationdivision pteridophytadivision euglenophytadivision dicynodontiadissociative disorderdissociation constantdisassortative matingdirect supporting firediplotaxis tenuifoliadiplazium pycnocarpondionysius i of syracusedilleniid dicot familydilation and curettagedigital communicationdifferential equationdicrostonyx hudsoniusdichloroethyl sulfidedesmanthus ilinoensisdeoxyribonucleic aciddemetrius poliorcetesdefensive attribitiondavid alfaro siqueirosdante gabriel rossettidalbergia stevensoniicystopteris bulbiferacypripedium calceoluscyperus alternifoliuscyclamen hederifoliumcycladic civilizationcycladic civilisationcyamopsis psoraloidesctenocephalides feliscrotalaria sagitalliscroatian monetary unitcriminal conversationcoumarone-indene resincottrell precipitatorcorydalis claviculatacortinarius mutabiliscorpuscular radiationcoordination compoundcontextual definitionconstructive evictionconstruction industryconstantine i of greececonservation of parityconduction anesthesiaconditioned avoidancecompact disc write-oncecommon carline thistlecommand line interfacecolour television tubecolorimetric analysiscollegiate dictionarycollective bargainingcodariocalyx motoriusclostridium botulinumclose-quarter fightingclopidogrel bisulfateclintonia andrewsianaclinical psychologistclaytonia carolinianaclassical haemophiliaclandestine operationcitrophilous mealybugcistothorus platensiscistothorus palustrischrysophyllum cainitochronic kidney failurechloroxylon swieteniachionochloa conspicuachilomeniscus cinctuschenopodium capitatumchemnitzer concertinacervical disc syndromecertificate of depositcentaurium scilloidescaspar friedrich wolffcarya myristiciformiscarolina spring beautycardiac resuscitationcampanula aparinoidescalostoma cinnabarinacalochortus nuttalliicallirhoe triangulatacallirhoe involucratacalifornia four o'clockcalifornia false morelcalculus of variationscaffeine intoxicationbrush-tailed porcupinebrassaia actinophyllaboykinia occidentalisbotrychium multifidumbosnia and herzegovinablastodermic vessiclebiscayne national parkbioelectric potentialbiochemical mechanismbinomial distributionbenjamin david goodmanbegonia heracleifoliabaccharis halimifoliaavicennia officinalisaversive conditioningatrioventricular nodeatlantic spiny dogfishasplenium trichomanesasparagus officinalesasarum shuttleworthiiarteria intercostalisartemisia ludovicianaartemisia gnaphalodesartaxerxes ii of persiaariocarpus fissuratusarenaria groenlandicaardisia escallonoidesarctic ground squirrelarceuthobium pusillumaposematic colorationapodictic propositionantonius stradivariusantitrust legislationantiophthalmic factorantihemophilic factoranti-inflammatory druganterior cerebral veinanterior cardinal veinandropogon virginicusanaphylactic antibodyambrosia psilostachyaairborne transmissionafrican bowstring hempaffine transformationaeronautical engineeradverbial of conditionacute myeloid leukemiaacacia auriculiformisabu nidal organization2-methylpropenoic acid
