<p><strong>Verb (used without object)</strong></p><ul><li>to emit breath or vapor; breathe out.</li><li>to pass off as vapor; pass off as an effluence.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to breathe out; emit (air, vapor, sound, etc.): to exhale a sigh.</li><li>to give off as vapor: The engine exhaled steam.</li><li>to draw out as a vapor or effluence; evaporate.</li></ul>