Entry 3 senses · 2 variants Webster, 1913 Outbreathe · Out·breathe · IPA v. t. v. i. 01 v. t. To breathe forth. 1. To breathe forth. 2. To cause to be out of breath; to exhaust. 02 v. i. To issue, as breath; to be breathed out; to exhale. 1. To issue, as breath; to be breathed out; to exhale.