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There are 810 eighteen-letter words containing E, 2I, S and Y

(page 5)

precrystallizationpredispositionallypreliminary␣rulingsPresidency␣divisionpresuppositionallypresynchronizationprimary␣legislationprobability␣densityprobability␣measurepropionylpromasineproposition␣playerspropriosensitivityprosecution␣historyprosperity␣doctrineprotodesilylationsproximoposteriorlypseudobiologicallypseudoheritabilitypseudouridylationspseudoxyrhophiinespsychogeriatricianpsychomanipulativepsychophilosophiespsychosemioticallypsychrosensitivitypyridylsulfoximinepyrimidodiazepinesquasireversibilityquasithermodynamicradiation␣chemistryradioimmunoassayedradiosynovectomiesRainy␣River␣DistrictRayleigh␣scatteringreconstitutabilityreconstructabilityreconstructibilityrecrystallisationsrecrystallizationsrectosigmoidectomyrectosigmoidoscopyredbrick␣university red␣brick␣universityreductionisticallyregistration␣countyresolution␣advisoryrespiratory␣pigmentrestitutive␣fantasyrestricted␣securityrestriction␣enzymesresyllabificationsresynchronisationsresynchronizationsreticulocytopeniasretransformabilityreversing␣cylindersrumination␣syndromeSaint␣Valentine's␣DaysalpingovariectomySanfilippo␣syndromescansoriopterygidsscimitar-horned␣oryxsecessionisticallysecondary␣emissionssecondary␣infectionsecondary␣intentionsecondary␣liabilitysecurity␣market␣linesecurity␣principalssedimentologicallyseismocardiographyself-referentialitysemiapologeticallysemibiographicallysemiconservativelysemiprofessionallysemiquantitativelysemirespectabilitysemisymmetrizationsemisystematicallysensitivity␣readersserendipity␣berriesserodiagnosticallysesquicentenniallysialoglycopeptidessialoglycoproteinssialyldisaccharidesialylglycopeptidesialylglycoproteinsialyllactosaminesSiberian␣rubythroatsick␣office␣syndromesignature␣authoritysimple␣connectivitysince␣Skippy␣was␣a␣pupsingle-parent␣familysingle-speed␣bicycleskinny␣drink␣of␣watersleeping␣dictionarysocial␣psychologiessocioendocrinologysodicanthophyllitesodium␣borohydridessodium␣hypochloritesolitary␣sandpipersSouthwick␣and␣Widleyspiny-tailed␣lizardssplendid␣fairywrensspondylarthritidessquashed␣fly␣biscuitstandard␣of␣identitystand␣on␣one's␣dignitystationary␣bicyclesstaying␣the␣distancesteak␣and␣kidney␣piesstereoisomericallystereospecificallystinking␣corpse␣lilystoichiometricallystylohyoid␣ligamentstyrylisothiazolessubjectivisticallysubpsychotomimeticsuccinylproteomicssulfametoxydiazinesulfinic␣anhydridessulfonic␣anhydridessulfonylketeniminesulphinic␣anhydridesulphonic␣anhydridesummability␣methodsSunnyside-Tahoe␣Citysuperadiabaticallysuperagonisticallysupercontractivitysuperintegrabilitysuperiority␣complexsuperoleophobicitysuperparticularitysuperphysiologicalsuperpositionalitysuperstoichiometrySwiss␣Army␣penknivessymbolic␣expressionsymmetric␣functions

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 1067 words
  • Spanish Wiktionary: 10 words
  • Italian Wiktionary: no word
  • German Wiktionary: 121 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 47 words

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