This is the term used in the King James Version for "guardian" in Galatians 3:24–25. A schoolmaster is a person who teaches students, similar to a teacher or tutor (as in the New American Standard Bible). In the context of the Bible, the term refers to a figure who guides and instructs students, helping them understand and follow the rules until they are ready to learn on their own. This idea symbolizes how the law served to prepare people for the coming of Jesus. See Custodian.
Schoolmaster
From Tyndale Bible Dictionary, adapted by Mission Mutual. CC BY-SA 4.0.