20-Letter Words Containing: I,R,O,S
(In Any Order)
There are 114 20 letter words,
733 20 letter phrases and
0 20 letter abbr's with
I,R,O,S in.
Best Scoring 20 Letter Words With: I,R,O,S
| 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 (114)
overenthusiasticallyhypercholesterolemiaunsatisfactorinessesunderrepresentationsuncompromisingnessesultrasegregationistsultrarevolutionariesultramicroscopicallyultracentrifugationstransformationalistssyncategorematicallysuperspecializationsspectrophotometricalspectroheliographiesspectrofluorometriesrepresentationalistsrepresentationalismsreinstitutionalizingreindustrializationsreconceptualizationsradiopharmaceuticalsradioimmunoassayablepsychopharmacologistpsychopharmacologiespseudocholinesteraseprofessionalizationsplethysmographicallyphotoreconnaissancesphotophosphorylationphotointerpretationsphotodisintegrationsphosphofructokinasesphiloprogenitivenessphenylthiocarbamidesphenylpropanolaminesparadichlorobenzenespaleoanthropologistsoverprotectivenessesoverintellectualizesoverdifferentiationsnondestructivenessesneuropsychiatricallyneurophysiologicallyneuropharmacologistsneuroendocrinologistneuroendocrinologiesmischaracterizationsmicropaleontologistsmicroelectrophoresismicroelectrophoresesmicrocrystallinitieslymphogranulomatosiskeratoconjunctivitesirreproachablenessesirreconcilablenessesinterstratificationsinterconnectednessesinconsiderablenessesincomprehensiblenessincommensurabilitiesimmunoprecipitationshyperparathyroidismshyperconsciousnesseshypercoagulabilitieshypercholesterolemichydrochlorothiazideshomotransplantationsglomerulonephritidesexpressionlessnessesencephalomyocarditiselectrophysiologistselectrophysiologicalelectrophotographieselectrooculographieselectroluminescencesdimethylnitrosaminesdepartmentalizationsdeoxyribonucleotidesdeindustrializationsdehydrochlorinationscytodifferentiationscrystallographicallycountersurveillancescountermobilizationscounterintelligencescounterdemonstratingcounterconditioningscontradistinguishingcomprehensiblenessesbacteriochlorophyllsantifluoridationistsanticonservationistsantiauthoritarianismanthropocentricitiesadrenocorticotropinsadrenocorticosteroidacetylcholinesterasesemiautobiographicalpseudohermaphroditicoophorosalpingectomynephroangiosclerosismagnetohydrodynamicslipochondrodystrophykeratoconjunctivitisinternationalisationincontrovertiblenessimmunohistochemistryhyperadrenocorticismheterobasidiomycetesdestructive-metaboliccounterrevolutionistcounterdemonstrationcounter-revolutionistcompartmentalisationPhrases (733)
yellow-shafted flickerwoodrow wilson guthriewilliam lloyd garrisonwilliam henry harrisonvirgil garnett thomsonvaricella zoster virusuniversity of nebraskatwo-dimensional figuretunisian monetary unittumour necrosis factortransportation systemthomas lanier williamssuperfamily coccoideasuborder strepsirhinisuborder myxiniformessubclass lepidosauriastephen collins fostersphenisciform seabirdsouthern united statessouth american countrysolidago multiradiatasoftware optimizationsocial justice warriorsir karl raimund poppersir james george frazersir charles wheatstonesimple harmonic motionsignature recognitionsense of right and wrongselective informationsedative-hypnotic drugsecond lateran councilsecond coming of christscomberomorus regalisscipio africanus majorschool superintendentsaponaria officinalissamuel rawson gardinersaint peter the apostlesaccharum officinarumrobert william servicerobert louis stevensonrhizopogon idahoensisresurrection of christresident commissionerrequirements contractrepublic of madagascarrepublic of kazakhstanrepublic of el salvadorreconstruction periodracial discriminationpsychological featureprumnopitys taxifoliaprofessional relationprinciple of parsimonyprescription medicineplasminogen activatorpierre simon de laplacephotographic emulsionpersonality inventorypersonal relationshippast progressive tensepass with flying colorsoryctolagus cuniculusorder sphenisciformesorder myxobacterialesorder mycelia steriliaorder heterotrichalesorder actinomycetalesorder accipitriformesobstruction of justicenutritionist's calorienicolas de malebrancheneisseria gonorrhoeaenasturtium officinalemilton snavely hersheymilitary installationmetallographic samplemental representationmaster of architecturemarket capitalisationluscinia megarhynchoslunar excursion moduleludwig mies van der rohelophophora williamsiilebanese monetary unitlateral epicondylitisklemens von metternichjudgement on the meritsjapanese monetary unitjames harold doolittleislamic calendar monthinstruction executionindirect transmissionhomolosine projectionhenri toulouse-lautrechans christian oerstedgross national productgleditsia triacanthosgeorges henri lemaitregenus phoenicophoriumgenus ornithorhynchusgaultheria procumbensfundulus heteroclitusfriendly relationshipfrankenstein's monsterfouquieria columnarisfederation of malaysiafather of the submarinefamily passifloraceaefamily gasterosteidaeestonian monetary unitendogenous depressionemotional disturbanceeleocharis acicularisedward williams morleydouble-reed instrumentdivision tracheophytadisplacement reactiondianthus caryophyllusdemonstrative pronoundegenerative disordercross-florida waterwaycortinarius violaceuscontradiction in termsconservation of matterconsecutive operationcomparative anatomistcommunity of interestscommercial instrumentcommercial enterprisechristopher isherwoodchlamydia trachomatischaradrius morinelluscentropus phasianinuscase-to-infection ratiocarter administrationcarson smith mccullerscardinal compass pointcaprimulgus vociferuscaprimulgus europaeuscapital of switzerlandcapital of south africacapital of sierra leonecapital of saudi arabiacapital of rhode islandbyelorussian languagebusiness relationshipbusiness organizationbusiness organisationbroadcast programmingbritish pound sterlingbotswana monetary unitbotaurus lentiginosusblue ribbon commissionbaron snow of leicesteraustrian monetary unitaustralian bonytongueatmospheric conditionartemisia californicaarcheological remainsappendicular skeletonapium graveolens dulceanemopsis californicaamsinckia grandifloraamerican harvest mouseambystomid salamanderambrose gwinett bierceambloplites rupestrisalice malsenior walkeralexander iii of russiaalessandro cagliostroaimee semple mcphersonageratum houstonianumacquisition agreementaboriginal australianzalophus californicusyosemite national parkxiphosurus polyphemusxeroderma pigmentosumxenorhyncus asiaticusxanthosoma atrovirensworld trade center siteworkmen's compensationword processing systemwoolsorter's pneumoniawilliam richard morriswilliam nunn lipscom jr.william felton russellwhite-throated sparrowwestern honey mesquitevoice in the wildernessvincetoxicum hirsutumvigdis finnbogadottirvesicoureteral refluxverbesina encelioidesvena supratrochlearisvena labialis superiorvena labialis inferiorvena facialis anteriorvena cerebrum superiorvaleriana officinalisustilaginoidea virensuniversity of michiganuniversal propositionuniversal product codeuniversal gas constantunited states congressunited states air forceunited church of christungradable oppositiontwelve tribes of israeltriostium perfoliatumtrichosurus vulpeculatrichomanes speciosumtrichomanes reniformetransversus abdoministransorbital lobotomytranscortical aphasiatrack-to-track seek timetrachinotus carolinustoy manchester terriertoxic industrial wastetonsilla pharyngealistolypeutes tricinctustobias george smollettthysanopterous insectthorstein bunde veblentheory of dissociationtheodore francis powysthelonious sphere monktemporal lobe epilepsytelevision-camera tubetelevision newscastertaurotragus derbianustartarian honeysuckletamiasciurus douglasisysteme internationalsystema respiratoriumsynchronous operationsymplocarpus foetidussympathetic vibrationsylvilagus floridanusswietinia macrophyllaswainsona grandiflorasurvival of the fittestsupport vector machinesuperior rectus musclesuperior labial arterysuperior cerebral veinsuperfamily tineoideasuperfamily muscoideasudanese monetary unitsubornation of perjurysuborder sciuromorphasuborder plesiosauriasuborder heterostracisuborder cephalaspidasuborder anthropoideasubliminal perceptionsubfamily hydromyinaesubclass telosporidiasubclass branchiopodastylophorum diphyllumstrawberry hemangiomasteatornis caripensisstatistical procedurestandard transmissionstaffordshire terrierst. gregory of nazianzenspodoptera frugiperdasplit-half correlationspiranthes porrifoliaspecial-interest groupspartina cynosuroidessouth american sea lionsource of illuminationsomatotrophic hormonesomatic sensory systemsomalian monetary unitsolidago sempervirenssolid-propellant motorsoleirolia soleiroliisoftware optimisationsodium orthophosphatesodium lauryl sulphatesocial stratificationsocial security numbersocial anthropologistsmiledon californicusslip-tongue log skiddersisymbrium officinalesir oliver joseph lodgesir joseph john thomsonsir james young simpsonsir harold walter krotosir geoffrey wilkinsonsinusoidal projectionsingle-propeller planesiderochrestic anemiasideroblastic anaemiashort-billed marsh wrensexual discriminationsenior master sergeantsemiautomatic firearmself-propelled vehiclesecretary of educationsecond epistle of petersecond earl of guilfordseborrheic dermatitisscutigera coleoptratascouting organizationscleroderma flavidiumscleroderma aurantiumscintillation counterschizopetalon walkerischeduled territoriesscaphiopus bombifronsscabiosa atropurpureasaxifraga stoloniferasaxifraga sarmentosamsanvitalia procumbenssanitation departmentsalvinia rotundifoliasalpichroa rhomboideasaint francis of assisirumohra adiantiformisrubus idaeus strigosusround-spored gyromitrarocky mountains cherryrobert charles venturirhododendron viscosumrevolutions per minutereversing thermometerreuben lucius goldbergrespiratory infectionrespiratory alkalosisrequired reserve ratiorepublic of uzbekistanrepublic of tajikistanrepublic of seychellesreligious orientationreconstructive memoryreconnaissance by firereagan administrationquercus ellipsoidalispyridoxine 5'-phosphatepyramidal motor systempurse-string operationpublius vergilius maropterocarpus marsupiumpsychopsis kramerianapsychological warfarepseudococcus fragilisproportional samplingprofit and loss accountprofessional footballprofessional baseballprocessus coronoideusprivate security forceprince-of-wales featherprimary solid solutionprice-to-earnings ratiopresident george w. bushpotassium-argon datingpotassium bicarbonateposttraumatic amnesiaposterior labial veinspostal rate commissionpositive-degree adverbporonotus triacanthuspopulus grandidentatapolystichum setiferumpolitical correctnesspodocarpus latifoliuspodocarpus ferrugineaplectrophenax nivalisplatte river penstemonpittsburgh of the southpilosella officinarumpiezoelectric crystalpierre-joseph proudhonphysical anthropologyphilosophy departmentphilip warren andersonphilip dormer stanhopephaseolus multiflorusphalaropus fulicariuspersonal line of creditperonospora hyoscyamiperomyscus gossypinusperitonsillar abscessperisoreus canadensispercussion instrumentpenstemon linarioidespassiflora mollissimapassiflora maliformispassiflora laurifoliaparietomastoid suturepaper electrophoresispachyrhizus tuberosusortilis vetula macalliorthophosphorous acidorthopedic foot insoleorthogonal oppositionorganic brain syndromeorder torpediniformesorder scrophularialesorder of saint benedictorder lepidodendralesorder jungermannialesorder cycadofilicalesorder charadriiformesorder blastocladialesorder aristolochialesorange mushroom pimpleoperation desert stormonobrychis viciifoliaoceanic whitetip sharkobtuse-angled triangleobject of a prepositionnurse-patient relationnuclear power industrynotropis atherinoidesnorthwest territoriesnorthern united statesnorth island edelweissnonviolent resistancenonrestrictive clauseniels henrik david bohrneurological disordernerve block anesthesianephrolepis pectinatanepalese monetary unitneoceratodus forsterinegotiable instrumentnecrotizing enteritisnecrobiosis lipoidicanarthecium ossifragummyrmecobius fasciatusmusculophrenic arterymumification necrosismountain standard timemountain lady's slippermortise-and-tenon jointmorphophonemic systemmorchella angusticepsmistletoe rubber plantmirabilis californicamildred ella didriksonmigratory grasshoppermicrosorium punctatummicropterus salmoidesmeriones unguiculatusmenyanthes trifoliatamelville weston fullermaximilian's sunflowermasticophis lateralismarcus terentius varromaidenhair spleenwortmagnesium bicarbonatemacrotus californicusmacronectes giganteusmacroclemys temminckilysichiton americanumlyrurus mlokosiewicziluis de gongora y argotelouis victor de broglielonicera sempervirenslofortyx californicuslipoid granulomatosisligustrum ovalifoliumlesser rhomboid musclelecture demonstrationlasthenia chrysostomalaguncularia racemosakosteletzya virginicaklinefelter's syndromekingdom of saudi arabiakinetic theory of gasesketosis-prone diabeteskaspar friedrich wolffkaren danielsen horneyjournalist's privilegejoseph warren stilwelljoseph rudyard kiplingjohn augustus roeblingjapanese morning gloryjames douglas morrisonisovolumetric processisidor feinstein stoneintravenous pyelogramintravenous injectionintransitive verb forminternational affairsinferior rectus muscleindustrial revolutionindustrial psychologyhyperkinetic syndromehypericum androsaemumhymenoxys grandiflorahylactophryne augustihydrofluosilicic acidhydnocarpus wightianahyacinthus orientalishorizontal stabilizerhorizontal stabiliserhippodamia convergenshibiscus rosa-sinensishexalectris warnockiiheterodyne oscillatorherschelian telescopeheracleum sphondyliumhelleborus orientalishelianthus petiolarisheat of transformationharpullia cupanioideshare's-foot bristle fernhalicoeres bivittatusgutierrezia sarothraeguernsey monetary unitgross domestic productgriselinia littoralisgregory goodwin pincusgreater peritoneal sacgraeco-roman wrestlinggooseneck loosestrifegolden-crested kingletgnaeus julius agricolaglaucous bristlegrassgiovanni schiaparelligeranium richardsoniigeorge william russellgeometric progressiongeoffroea decorticansgenus reithrodontomysgenus ptilonorhynchusgenus pithecanthropusgenus gymnosporangiumgenus corynebacteriumgenus aspidophoroidesgenus argentinosaurusgaussian distributiongastrophryne olivaceagalvanic skin responsegaleorhinus zyopterusfriedrich anton mesmerfrederick moore vinsonform genus rhizoctiniaforeign correspondentforeground processingflindersia schottianaflat-topped white asterfirst council of nicaeafirst battle of bull runfirst baron rutherfordfile transfer protocolfield press censorshipfibrous-rooted begoniafamily titanosauridaefamily strophariaceaefamily stercorariidaefamily scyliorhinidaefamily scombresocidaefamily peripatopsidaefamily ostraciontidaefamily melampsoraceaefamily megalosauridaefamily lophosoriaceaefamily hipposideridaefamily edaphosauridaeeuropean quaking aspeneuropean house cricketeuproctis phaeorrhoeaeuphorbia helioscopiaeuphorbia cyparissiaseucalyptus paucifloraeucalyptus citriodoraeucalypt tereticornisestraterrestrial bodyeschrichtius robustuseschrichtius gibbosuserythronium dens-caniserythrina vespertilioerigonum fasciculatumeragrostic abyssinicaepipactis helleborineenvironmental scienceenteric-coated aspirinenglish cocker spanielempiricist philosophyelectrostatic printerelectrostatic machineelectronic transistorelectronic instrumentedward douglas white jr.echinochloa crusgalliechinocactus grusoniidryopteris oreopterisdryopteris marginalisdramatic mezzo-sopranodoubly transitive verbdomestic silkworm mothdolichonyx oryzivorusdoctoral dissertationdivision pteridophytadissociative disorderdisassortative matingdirect supporting firedionysius i of syracusedicrostonyx hudsoniusdichloroethyl sulfidedemetrius poliorcetesdefensive attribitiondavid glasgow farragutdavid alfaro siqueirosdante gabriel rossettidaniel ortega saavedradangerous undertakingdalbergia stevensoniicystopteris bulbiferacypripedium calceoluscyperus alternifoliuscyamopsis psoraloidescruciferous vegetablecrotalaria sagitalliscriminal conversationcrataegus biltmoreanacoumarone-indene resincorydalis claviculatacortinarius mutabiliscorpuscular radiationcoronary heart diseasecoral-root bittercressconvergent strabismuscontinental breakfastconstructive evictionconstruction industryconstantine i of greececonstant accelerationconservation of parityconservation of energyconservation of chargecompensatory spendingcompact disc write-oncecommon snapping turtlecommon carline thistlecommencement exercisecolour television tubecolorimetric analysiscodariocalyx motoriusclostridium botulinumclose-quarter fightingclopidogrel bisulfateclintonia andrewsianaclandestine operationcitrophilous mealybugcistothorus platensiscistothorus palustrischrysophyllum cainitochrysophrys australischrosomal abnormalitychloroxylon swieteniachinese black mushroomcharles dillon stengelcervical root syndromecervical disc syndromecertificate of depositcentrolobium robustumcentaurium scilloidescelastrus orbiculatuscaspar friedrich wolffcarya myristiciformiscarolina spring beautycardiovascular systemcardiac resuscitationcarcharhinus obscuruscampanula aparinoidescalostoma cinnabarinacalochortus nuttalliicalifornia false morelcalculus of variationsbrush-tailed porcupinebrugmansia suaveolensbrassaia actinophyllabosnia and herzegovinablastodermic vessiclebittersweet chocolatebiscayne national parkbinomial distributionbegonia semperflorensbartolommeo eustachiobalaenoptera borealisbadlands national parkbackground processingbaccharis halimifoliaaversive conditioningaustronesian languageaustralian turtledoveaustralian labor partyaustralian coral snakeastrophyton muricatumastreus hygrometricusasplenium trichomanesasplenium platyneuronasparagus officinalesasarum shuttleworthiiartery of the penis bulbarteria intercostalisartemisia ludovicianaartemisia gnaphalodesartaxerxes ii of persiaariocarpus fissuratusardisia escallonoidesarctostaphylos alpinaarctic ground squirrelarceuthobium pusillumaposematic colorationapodictic propositionapalachicola rosemaryantonius stradivariusantitrust legislationandropogon virginicusandrew jackson downingamerican pasqueflowerambrosia psilostachyaaldrovanda vesiculosaairborne transmissionair force space commandafrican bowstring hempaffine transformationacacia auriculiformisabdominal nerve plexus
