/ Thesaurus / F Synonyms of fuel filter Find synonyms for: Noun1. fuel filter, filterusage: a filter in the fuel line that screens out dirt and rust particles from the fuelWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language