Tutor tu'-ter: In modern English an "instructor," more particularly a private instructor, but the word properly means a "guardian." Hence its use in Galatians 4:2 the King James Version for epitropos, here "guardian" (so the Revised Version (British and American)), and 1 Corinthians 4:15, Galatians 3:24, Galatians 3:25 the Revised Version (British and American) for paidagogos.
See SCHOOLMASTER.