- schoolmaster⇄noun 1. a man who teaches in a school, or is its principal.
2. (Figurative.) any person or thing that teaches or disciplines.
3. a snapper of the West Indies and adjacent waters. - schoolmaster⇄schoolmaster, noun, verb.
- schoolmaster⇄v.i. to be a schoolmaster.
- schoolmaster⇄v.t. to supervise or instruct as a schoolmaster.