/ Dictionary / Index C covering letter: Meaning and Definition of Find definitions for: cov'ering let'ter Pronunciation: [key] a letter that accompanies another letter, a package, or the like, to explain, commend, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. covering covering power Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language