tutor

US /ˈtuː.t̬ɚ/
UK /ˈtuː.t̬ɚ/
"tutor" picture
1.

a private teacher, typically one who teaches a single student or a very small group

:
My math tutor helped me improve my grades significantly.
She works as a private tutor for high school students.
1.

to act as a tutor to (a student or students)

:
She agreed to tutor him in English for the upcoming exam.
Many university students tutor younger students to earn extra money.