When a man shaves, he removes the hair from his face using a razor or shaver so that his face is smooth.

If someone shaves a part of their body, they remove the hair from it so that it is smooth.

If you shave someone, you remove the hair from their face or another part of their body so that it is smooth.

If you shave off part of a piece of wood or other material, you cut very thin pieces from it.

If you shave a small amount off something such as a record, cost, or price, you reduce it by that amount.

If you describe a situation as a close shave, you mean that there was nearly an accident or a disaster but it was avoided.