Tutor

noun
  1. A private teacher, typically one who teaches a single student or a very small group. noun
    The student hired a tutor to help improve her math skills.
    He works as a tutor, providing personalized lessons for high school students.
  2. A university or college teacher responsible for the teaching and supervision of assigned students. noun
    The tutor met with her students weekly to discuss their progress.
    As a tutor at the college, he was responsible for guiding students through their coursework.
  3. To teach or instruct, especially individually or in a small group. verb
    She tutors students in English as a second language.
    He tutors part-time while completing his graduate studies.