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There are 19 fifteen-letter words containing A, I, O, 2S, T and 2U

AUTOSUGGESTIONSautosuggestions n. Plural of autosuggestion.
auto-suggestions n. Plural of auto-suggestion.
AUTOSUGGESTION n. an influencing of one's own attitudes, behavior, or physical condition by mental processes other than conscious thought.
AUTOTRANSFUSIONautotransfusion n. (Medicine) A blood transfusion in which a person receives their own blood, extracted previously.
AUTOTRANSFUSION n. the return of autologous blood to the patient's own circulatory system.
DESULFURISATIONDESULFURISATION n. the removal of sulfur or sulfur compounds (as from coal or flue gas), also DESULFURIZATION.
DESULPHURATIONSdesulphurations n. Plural of desulphuration.
DESULPHURATION n. the act of desulphuring.
ICHTHYOSAURUSESICHTHYOSAURUS n. a large fossil marine reptile, also ICHTHYOSAUR, ICHTHYOSAURIAN.
MISPUNCTUATIONSmispunctuations n. Plural of mispunctuation.
MISPUNCTUATION n. a wrong punctuation.
MOUNTAINOUSNESSmountainousness n. The quality of being mountainous.
MOUNTAINOUSNESS n. the state of being mountainous.
NONSIMULTANEOUSnonsimultaneous adj. Not simultaneous.
NONSIMULTANEOUS adj. not simultaneous.
PUNCTUATIONISTSpunctuationists n. Plural of punctuationist.
PUNCTUATIONIST n. a believer in punctuated equilibrium.
SUBINFEUDATIONSsubinfeudations n. Plural of subinfeudation.
SUBINFEUDATION n. the sublease of a portion of a feudal estate by a vassal to a tenant who pays fealty to the vassal.
SUBINSINUATIONSSUBINSINUATION n. something less than an insinuation.
SUBSTITUTIONARYsubstitutionary adj. Of or relating to substitution or replacement.
SUBSTITUTIONARY adj. relating to substitution.
SUBURBANISATIONsuburbanisation n. Alternative form of suburbanization.
SUBURBANISATION n. the act of suburbanising, also SUBURBANIZATION.
SULPHURISATIONSSULPHURISATION n. the process of sulphurising, also SULPHURIZATION.
SULPHURIZATIONSsulphurizations n. Plural of sulphurization.
SULPHURIZATION n. the process of sulphurizing, also SULPHURISATION.
SUPERANNUATIONSsuperannuations n. Plural of superannuation.
SUPERANNUATION n. the act of superannuating.
SUPEROVULATIONSsuperovulations n. Plural of superovulation.
SUPEROVULATION n. production of exceptional numbers of ova at one time.
SUPERSATURATIONsupersaturation n. (Physics) The condition of a solution being more highly concentrated than is normally possible.
supersaturation n. (Physics) the condition of a vapour having a higher saturation vapour pressure than is normally possible.
supersaturation n. (Physiology) The condition of a solution of gases in a tissue having a higher concentration in terms…
ULTRAFASTIDIOUSultrafastidious adj. Extremely fastidious.
ULTRAFASTIDIOUS adj. extremely fastidious.

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: 117 words
  • Scrabble in French: 76 words
  • Scrabble in Spanish: 26 words
  • Scrabble in Italian: 21 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 66 words


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