Entry 1 sense Webster, 1913 Concessionary /kən-sĕsh'-ən-ĕrˌ-ē/ · Con·ces·sion·a·ry · IPA /kənˈsɛʃəˌnɛɹi/ 01 a. Of or pertaining to a concession. pl. -ries 1. Of or pertaining to a concession.