shut up Meaning, Definition & Usage

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

WordNet