Definitions from Wiktionary (shut up)

▸ verb:  (transitive) To close (a building) so that no one can enter.
▸ verb:  (transitive) To terminate (a business).
▸ verb:  (transitive) To put (someone or something) in a secure enclosed space, such as a room or container.
▸ verb:  (ergative, derogatory, often imperative) Of a person, to stop talking (usually in the form of making annoying, irrelevant, or false comments, during a period of peace and quiet, or when one is not allowed to talk) or arguing, or (of a person or thing) making noise.
▸ verb:  (transitive, slang, dated) To murder, kill.
▸ adjective:  Closed up or off, as in a building that no one is to enter.

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