verb-intransitive. To inhale and exhale air, especially when naturally and freely.verb-intransitive. To be alive; live: A nicer person has never breathed. verb-intransitive. To pause to rest or regain breath: Give me a moment to breathe. verb-intransitive. To move or blow gently, as air.verb-intransitive. To allow air to pass through: a natural fabric that breathes. verb-intransitive. To be exhaled or emanated, as a fragrance.verb-intransitive. To be manifested or suggested, as an idea or feeling: A sense of calm breathed from the landscape. verb-intransitive. To reach fullness of flavor and aroma through exposure to air. Used chiefly of wine.verb-intransitive. To require air in the combustion process. Used of an internal-combustion engine.v. To inhale and exhale (air, for example) during respiration.v. To inhale (an aroma, for example): breathe the lush scent of lilacs. v. To impart as if by breathing; instill: an artist who knows how to breathe life into a portrait. v. To exhale (something); emit.v. To utter, especially quietly: Don't breathe a word of this. v. To make apparent or manifest; suggest: Their manner breathed self-satisfaction. v. To allow (a person or animal) to rest or regain breath.v. Linguistics To utter with a voiceless exhalation of air.v. To draw in (air) for the combustion process. Used of an internal-combustion engine.idiom. breathe down (someone's) neck To threaten by proximity, especially by pursuing closely.idiom. breathe down (someone's) neck To watch or monitor closely, often annoyingly: The boss was breathing down my neck all morning. idiom. easily To be relaxed or relieved, especially after a period of tension.idiom. breathe (one's) last To die.