■ noun
1》 a private teacher, typically one who teaches a single pupil or a very small group.
↘ chiefly Brit. a university or college teacher responsible for assigned students.
↘ US an assistant lecturer in a college or university.
2》 Brit. a book of instruction in a particular subject.
■ verb act as a ~ to.
↘work as a ~.
Derivatives
~age noun
~ship noun
Origin
ME: from OFr. tutour or L. ~ , from tueri 'to watch, guard'.