/ Thesaurus / G Synonyms of gaius cassius longinus Find synonyms for: Noun1. Cassius, Cassius Longinus, Gaius Cassius Longinususage: prime mover in the conspiracy against Julius Caesar (died in 42 BC)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fortuitous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language