Emily Dickinson Lexicon

TU'TOR, n. [L. from tueor, to defend; Fr. tuteur.]

1. In the civil law, a guardian; one who has the charge of a child or pupil and his estate.
2. One who has the care of instructing another in various branches or in any branch of human learning. Some gentlemen employ a tutor to teach in their families, others to attend a son in his travels.
3. In universities and colleges, an officer or member of some hall, who has the charge of instructing the students in the sciences and other branches of learning. In the American colleges, tutors are graduates selected by the trustees, for the instruction of undergraduates of the three first years. They are usually officers of the institution, who have a share, with the president and professors, in the government of the students.