SCHOOL'MASTER, noun [See Master].
1. The man who presides over and teaches a school; a teacher, instructor or preceptor of a school. [Applied now only or chiefly to the teachers of primary school.]
Adrian VI. was sometimes schoolmaster to Charles V.
2. He or that which disciplines, instructs and leads.
The law was our schoolmaster to bring us to Christ. Galatians 3:24.