One who teaches another (usually called a student, learner, or tutee) in a one-on-one or small-group interaction.

(UK) A university officer responsible for students in a particular hall.

(UK) A homeroom

(obsolete or Quebec law) One who has the charge of a child or pupil and his estate; a guardian.

(collectible card games) A card that allows one to search one's deck for one or more other cards.

(transitive) To instruct or teach, especially an individual or small group.

(transitive, archaic) To treat with authority or sternness.

(collectible card games) To fetch a card from one's deck.