teacher
To pass on knowledge generally, especially as one's profession; to act as a teacher.
To pass on knowledge to.
To cause to know the disagreeable consequences of some action.
To cause (someone) to learn or understand (something).
A person who trains another; a coach.
A person responsible for treating injuries sustained by players during matches; a physiotherapist.
A patch for a video game that applies cheats.
A running shoe or sneaker.
A piece of indoor equipment allowing a bicycle to be ridden while stationary.