/ Thesaurus / C Synonyms of c2h6 Find synonyms for: Noun1. ethane, C2H6, methane series, alkane series, alkane, paraffin series, paraffin, hydrocarbonusage: a colorless odorless alkane gas used as fuelWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: garrulous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language