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List of 15-letter words containing

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There are 20 fifteen-letter words containing I, N, S, 3T and Y

COINSTANTANEITYcoinstantaneity n. Coinstantaneousness.
COINSTANTANEITY n. the state of being coinstantaneous.
CYTOGENETICISTScytogeneticists n. Plural of cytogeneticist.
CYTOGENETICIST n. one who studies cytogenetics.
CYTOTAXONOMISTScytotaxonomists n. Plural of cytotaxonomist.
CYTOTAXONOMIST n. a practitioner of cytotaxonomy.
HYPOSTATISATIONHYPOSTATISATION n. the process of hypostatising, also HYPOSTATIZATION.
HYPOSTATIZATIONhypostatization n. The act or process of being hypostatized.
HYPOSTATIZATION n. the act of hypostatizing, also HYPOSTATISATION.
INSTITUTIONALLYinstitutionally adv. In an institutional manner.
institutionally adv. Throughout an institution.
INSTITUTIONAL adv. of or relating to an institution, also INSTITUTIONARY.
INSTRUMENTALITYinstrumentality n. (Uncountable) The quality or condition of being instrumental; serving a purpose, being useful.
instrumentality n. (Countable, law) A governmental organ with a specific purpose.
instrumentality n. (Countable) Something that is instrumental; an instrument.
INTERTWISTINGLYINTERTWISTING adv. INTERTWIST, to twist together one with another.
LITHONTHRYPTICSlithonthryptics n. Plural of lithonthryptic.
LITHONTHRYPTIC n. a medicine for dissolving kidney stones, also LITHONTRIPTIC, LITHOTRIPTIC.
SUBSTITUTIONARYsubstitutionary adj. Of or relating to substitution or replacement.
SUBSTITUTIONARY adj. relating to substitution.
SYNTHETISATIONSSYNTHETISATION n. the process of synthetising, also SYNTHETIZATION.
SYNTHETIZATIONSsynthetizations n. Plural of synthetization.
SYNTHETIZATION n. the process of synthetizing, also SYNTHETISATION.
SYSTEMATISATIONsystematisation n. (British spelling) Alternative form of systematization.
SYSTEMATISATION n. the act of systematising, also SYSTEMATIZATION.
SYSTEMATIZATIONsystematization n. The act of systematizing.
systematization n. A systematic organization.
SYSTEMATIZATION n. the act of systematizing, also SYSTEMATISATION.
TELETYPESETTINGTELETYPESETTING n. typesetting by use of a Teletypesetter.
THIRTYSOMETHINGthirtysomething n. A tricenarian: a person in their thirties, a person aged between 30 and 39 years (inclusive).
thirtysomething adj. Between 30 and 39 years of age.
thirtysomething adj. Between 30 and 39 in number.
TRANSLATABILITYtranslatability n. The quality or property of being translatable; ability to be translated.
TRANSLATABILITY n. the state of being translatable.
TRANSMUTABILITYtransmutability n. The ability to be transmuted.
TRANSMUTABILITY n. the quality of being transmutable.
TWENTYSOMETHINGtwentysomething n. A person whose age is between twenty and twenty-nine years, inclusive; someone in their twenties.
twentysomething num. Between twenty and thirty.
twenty-something num. Alternative form of twentysomething.
UNTRUSTWORTHILYuntrustworthily adv. In an untrustworthy manner.
UNTRUSTWORTHY adv. not trustworthy.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 101 words
  • Scrabble in French: 7 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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