/ Dictionary / Index E equal sign: Meaning and Definition of Find definitions for: e'qual sign" Pronunciation: [key] — Math. Math. the symbol (=), used in a mathematical expression to indicate that the terms it separates are equal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Equal Rights Amendment equal temperament 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