TOEFL IELTS breathe Definition To inhale and exhale air as part of breathing. Example "It's hard to breathe at high altitudes." Sign in to save TOEFL Quiz → IELTS Quiz → ← breath breathless → Study tips featuring "breathe" Crack Unfamiliar Words Using Root Analysis Related words TOEFL brighten GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate GRE abduct SAT abet GRE abhor GRE abide SAT abject TOEFL ablaze