a person employed as a private teacher, esp one who teaches individuals or small groups, often giving extra instruction or remedial help
Brit a university or college teacher who teaches a small group, often also having responsibility for students’ welfare
NAmer a junior university or college teacher, esp one without tenure (secure employment status)
Brit an instruction book
tutorage /-rij/ noun
tutorship noun
[Middle English via French from Latin tutor, from Latin tueri to look at or guard]