Entry 1 sense Webster, 1913 Masculinity /măsˌ-kyəl-ĭn'-ət-ē/ · Mas·cu·lin·i·ty · IPA /ˌmæskjəˈlɪnɪti/ 01 n. The state or quality of being masculine; masculineness. 1. The state or quality of being masculine; masculineness.