/ Dictionary / Index D day letter: Meaning and Definition of Find definitions for: day' let"ter Pronunciation: [key] a telegram having a limited number of words and sent slower and cheaper than a regular telegram. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. day laborer Day-Lewis Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language