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List of 15-letter words containing

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There are 17 fifteen-letter words containing 2H, O, 3S and T

BISPHOSPHONATESbisphosphonates n. Plural of bisphosphonate.
BISPHOSPHONATE n. any of a family of drugs primarily used to prevent and treat osteoporosis.
CRASHWORTHINESScrashworthiness n. The state or quality of being crashworthy.
CRASHWORTHINESS n. the state of being crashworthy.
HARPSICHORDISTSharpsichordists n. Plural of harpsichordist.
HARPSICHORDIST n. one who plays the harpsichord.
HOTHEADEDNESSESHOTHEADEDNESS n. HOTHEADED, rash, impetuous.
ICHTHYOSAURUSESICHTHYOSAURUS n. a large fossil marine reptile, also ICHTHYOSAUR, ICHTHYOSAURIAN.
PHILOSOPHASTERSphilosophasters n. Plural of philosophaster.
PHILOSOPHASTER n. an amateur or superficial philosopher.
PHOTOSYNTHESISEphotosynthesise v. Alternative spelling of photosynthesize.
PHOTOSYNTHESISE v. to carry out photosynthesis.
PSYCHOHISTORIESpsychohistories n. Plural of psychohistory.
PSYCHOHISTORY n. historical analysis or interpretation using psychological and psychoanalytic methods.
PSYCHOPHYSICISTpsychophysicist n. One who studies psychophysics.
PSYCHOPHYSICIST n. a student of psychophysics.
PSYCHOSYNTHESESpsychosyntheses n. Plural of psychosynthesis.
PSYCHOSYNTHESIS n. a form of psychotherapy combining psychoanalytic techniques with meditation and exercise.
PSYCHOSYNTHESISpsychosynthesis n. A form of psychology based on the direct experience of the self.
PSYCHOSYNTHESIS n. a form of psychotherapy combining psychoanalytic techniques with meditation and exercise.
SCHOOLMASTERISHschoolmasterish adj. Resembling or characteristic of a schoolmaster.
SCHOOLMASTERISH adj. like a schoolmaster.
SHILLINGSWORTHSshillingsworths n. Plural of shillingsworth.
SHILLINGSWORTH n. goods to the value of a shilling.
SLAUGHTERHOUSESslaughterhouses n. Plural of slaughterhouse.
SLAUGHTERHOUSE n. an establishment where animals are butchered.
STADHOLDERSHIPSstadholderships n. Plural of stadholdership.
STADHOLDERSHIP n. the office of stadholder, a Dutch viceroy or provincial governor, also STADHOLDERATE, STADTHOLDERATE, STADTHOLDERSHIP.
SUPERPHOSPHATESsuperphosphates n. Plural of superphosphate.
SUPERPHOSPHATE n. acid phosphate.
THOUGHTLESSNESSthoughtlessness n. Disregard for other’s feelings.
thoughtlessness n. Heedless disregard for the consequences of one’s actions.
THOUGHTLESSNESS n. the state of being thoughtless.

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: 82 words
  • Scrabble in French: 8 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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