Entry 1 sense Webster, 1913 Truancy /tro͞o'-ən-sē/ · Tru·an·cy · IPA /trˈuːənsiː/ 01 n. The act of playing truant, or the state of being truant; as, addicted to truancy. 1. The act of playing truant, or the state of being truant; as, addicted to truancy.