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There are 12 fifteen-letter words containing A, H, 2I, S, 2T and U

AUTHENTICATIONSauthentications n. Plural of authentication.
AUTHENTICATION n. the act of authenticating.
AUTOSCHEDIASTICautoschediastic adj. (Dated) impromptu, improvised, ex tempore or offhand.
AUTOSCHEDIASTIC adj. impromptu; on the spur of the moment.
EPITHELIOMATOUSepitheliomatous adj. Relating to epithelioma.
EPITHELIOMATOUS adj. relating to epithelioma.
EUTROPHICATIONSeutrophications n. Plural of eutrophication.
EUTROPHICATION n. the process of becoming eutrophic.
HUMANITARIANISThumanitarianist n. Synonym of humanitarian.
HUMANITARIANIST n. a proponent of humanitarianism.
HYPOPITUITARISMhypopituitarism n. (Medicine) A decrease in secretion of one or more of the eight hormones normally produced by the pituitary gland.
HYPOPITUITARISM n. deficient production of growth hormones by the pituitary gland.
IMPOSTHUMATIONSimposthumations n. Plural of imposthumation.
IMPOSTHUMATION n. the act of forming an imposthume, an abscess, also IMPOSTUMATION.
LIEUTENANTSHIPSlieutenantships n. Plural of lieutenantship.
LIEUTENANTSHIP n. the office of lieutenant.
METABISULPHITESmetabisulphites n. Plural of metabisulphite.
METABISULPHITE n. as in sodium metabisulphite, an inorganic compound.
MULTITHREADINGSMULTITHREADING n. a programming system that enables actions to be carried out simultaneously.
REAUTHORISATIONreauthorisation n. Alternative form of reauthorization.
REAUTHORISATION n. the process of reauthorising, also REAUTHORIZATION.
UNSOPHISTICATEDunsophisticated adj. Not sophisticated; lacking sophistication.
UNSOPHISTICATED adj. not sophisticated.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 94 words
  • Scrabble in French: 21 words
  • Scrabble in Spanish: 2 words
  • Scrabble in Italian: 20 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 29 words


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