Entry 1 sense Webster, 1913 Lionism /(lī"ŭn*ĭz'm)/ · Li·on·ism · IPA /ˈlaɪəˌnɪzəm/ 01 n. An attracting of attention, as a lion; also, the treating or regarding as a lion. 1. An attracting of attention, as a lion; also, the treating or regarding as a lion.