(sports) someone in charge of training an athlete or a team
teach and supervise (someone); act as a trainer or coach (to), as in sports
drive a coach
insert inconspicuously or quickly or quietly
move obliquely or sideways, usually in an uncontrolled manner
a socially awkward or tactless act
move smoothly and easily
a minor inadvertent mistake usually observed in speech or writing or in small accidents or memory lapses etc.