Entry 1 sense Webster, 1913 Portability /pôrˌ-təb-ĭl'-ĭt-ē/ · Port·a·bil·i·ty · IPA /pˌɔrtəbˈɪlɪtiː/ 01 n. The quality or state of being portable; fitness to be carried. 1. The quality or state of being portable; fitness to be carried.