Entry 1 sense Webster, 1913 Outrance /(o͞o`träNs")/ · Ou·trance · IPA /ˈuː.tɹɑ̃s/ 01 n. The utmost or last extremity. 1. The utmost or last extremity. Phrases & compounds Combat a outrance — a fight to the end, or to the death. Syn. fight to the finish.