Entry 2 senses · 2 variants Webster, 1913 Coopery · Coop·er·y · IPA /ˈkuːpəɹi/ a. n. 01 a. Relating to a cooper; coopered. 1. Relating to a cooper; coopered.[Obs.] “Coopery vessels made of wood.” — Holland. 02 n. The occupation of a cooper. 1. The occupation of a cooper.