To inform or teach with all relevant details; to brief.
To study in detail; to familiarize oneself with all available information.
To teach.
A pedant; one who by teaching has become overly formal or pedantic in his or her ways; one who has the manner of a teacher.
A slave who led the master's children to school, and had the charge of them generally.
A teacher or instructor of children; one whose occupation is to teach the young.