a scholar, practitioner, professional, specialist, disciplinarian imparting knowledge.
an individual who practices or is knowledgeable on any of the prevalent disciplines of customs, learning, rituals, arts, traditions, schools etc., especially one imparting them into pupils.
A person who studies or learns about a particular subject.
A person who is enrolled at a college or university (as contrasted with a pupil or schoolchild attending a primary or secondary school).
A person who is formally enrolled at a school, a college or university, or another educational institution.