/ Dictionary / Index L letter-card: Meaning and Definition of Find definitions for: let•ter-card Pronunciation: (let'ur-kärd"), [key] — n. Brit. a large postal card, with gummed edges, that can be folded lengthwise and sealed with the message inside. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: letter-card (Thesaurus) letter box letter carrier Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language