/ Dictionary / Index E eighth rest: Meaning and Definition of Find definitions for: eighth' rest" Pronunciation: [key] — Music. Music. a rest equal in time value to an eighth note. See illus. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. eighth note eight-hundred number Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language