Entry 1 sense Webster, 1913 Monosyllabic · Mon·o·syl·lab·ic · IPA /ˌmɒnə(ʊ)sɪˈlabɪk/ 01 a. Being a monosyllable, or composed of monosyllables; as, a monosyllabic word; a monosyllabic language. 1. Being a monosyllable, or composed of monosyllables; as, a monosyllabic word; a monosyllabic language.