Entry 1 sense Webster, 1913 Feria /fĕr'-ē-ə/ · Fe·ri·a · IPA /ˈfɛ.ɹi.ə/ 01 n. A week day, esp. a day which is neither a festival nor a fast. pl. Feriæ 1. A week day, esp. a day which is neither a festival nor a fast.(Eccl.)