/ Dictionary / Index T thank-you: Meaning and Definition of Find definitions for: thank-you Pronunciation: (thangk'y"), [key] — adj. expressing one's gratitude or thanks: a thank-you note. —n. an expression of thanks, as by saying “thank you”: I never got so much as a thank-you for helping him. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: thank-you (Thesaurus) thankworthy thank-you-ma'am Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language