/ Dictionary / Index T thill: Meaning and Definition of Find definitions for: thill Pronunciation: (thil), [key] — n. either of the pair of shafts of a vehicle between which a draft animal is harnessed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: thill (Thesaurus) thigmotropism thimble Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language