Definition of course:

part of speech: verb

To hunt; to chase; to run through or over; to move with speed.

part of speech: noun

A career; a race; the ground on which the race is run; generally a passing, moving, or motion forward within limits; the progress of anything; usual manner; order of procedure; way of life or conduct; natural bent; the dishes set on table at one time; elements of an art or science exhibited and explained in a series of lessons or lectures, as a course of chemistry; a continued range of stone's or bricks in the wall of a building; the track of a ship.