0 how quickly you do something: --
1 how easy or difficult something is: --
At first the job was hard going (= difficult), but it's got easier with time.
She's obviously very intelligent, but her lectures are heavy going (= they are difficult to understand).
2 the condition of the ground for walking or riding, etc.: --
3 an occasion when someone leaves somewhere: --
His going came as a shock.
5 the usual rate, price, etc. at a particular time: --