/ Thesaurus / B Synonyms of binding energy Find synonyms for: Noun1. binding energy, separation energy, energy, free energyusage: the energy required to separate particles from a molecule or atom or nucleus; equals the mass defectWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: menagerie Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language