tutor

noun

1. 1. a teacher who gives individual instruction to a student; private teacher
   2. a person who gives remedial or supplemental instruction to another
2. a legal guardian of a minor
3. in English universities, a college official in charge of the studies of an undergraduate
4. ☆ in some American universities and colleges, a teacher ranking below an instructor; teaching assistant

transitive verb

1. to act as a tutor to; teach; esp., to give individual instruction to
2. Now Rare to train under discipline; discipline; admonish

intransitive verb

1. to act as a tutor, or instructor
2. ☆ Informal to be instructed, esp. by a tutor