/ Dictionary / Index L letterman: Meaning and Definition of Find definitions for: let•ter•man Pronunciation: (let'ur-man", -mun), [key] — pl. -men a person who has earned a letter in an interscholastic or intercollegiate activity, esp. a sport. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: letterman (Thesaurus) lettering letter missive Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language