schoolmaster /ˈskulˌmæstəɹ/noun 3verb 1forms 3 noun3 •A male teacher. •A male teacher in charge of a school, usually a small one. •(figurative) Anything that teaches.The war was a tough schoolmaster for the Athenians. verb1 •To teach in the capacity of schoolmaster. formsschoolmastered · schoolmastering · schoolmasters