/ Thesaurus / F Synonyms of fatigue crack Find synonyms for: Noun1. fatigue crack, crack, cleft, crevice, fissure, scissureusage: a crack in metal resulting from metal fatigueWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language