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Definition of 'shut up'


  1. refuse to talk or stop talking; fall silent; "The children shut up when their father approached"
       Synonyms: close up clam up dummy up belt up button up be quiet keep mum
       Antonyms: open up
  2. place in a place where something cannot be removed or someone cannot escape; "The parents locked her daughter up for the weekend"; "She locked her jewels in the safe"
       Synonyms: lock in lock away lock put away shut away lock up
  3. cause to be quiet or not talk; "Please silence the children in the church!"
       Synonyms: hush quieten silence still hush up
       Antonyms: louden


  1. closely confined
       Synonyms: pent

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