What is the meaning of Shut_up?

To close (a building) so that no one can enter.

To terminate (a business).

To put (someone or something) in a secure enclosed space, such as a room or container.

Of a person, to stop talking or (of a person or thing) making noise.

To murder, kill.

Closed up or off, as in a building that no one is to enter.

Stop talking, crying, etc.

I don't believe it!, no way!

Source: wiktionary.org