Entry 1 sense Webster, 1913 Brachylogy /bră-kĭlʹə-jē/ · Bra·chyl·o·gy · IPA /bɹæˈkɪl.ə.d͡ʒi/ 01 n. Conciseness of expression; brevity. 1. Conciseness of expression; brevity.(Rhet.)