/ Dictionary / Index T TSH: Meaning and Definition of Find definitions for: TSH Pronunciation: [key] thyroid-stimulating hormone. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tsh (Thesaurus) T.Sgt. Tshi Related Content Daily Word Quiz: frowzy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language