/ Thesaurus / L Synonyms of let off Find synonyms for: Verb1. excuse, relieve, let off, exempt, absolve, justify, freeusage: grant exemption or release to; "Please excuse me from this class"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language