1. Refuse to talk or stop talking; fall silent
   "The children shut up when their father approached";
   - close up, clam up [informal], dummy up [N. Amer, informal], belt up [Brit, informal], button up, be quiet, keep mum [informal]
    
2. Place in a place where something cannot be removed or someone cannot escape
   "The prisoners were shut up in their cells";
   - lock away, lock, shut away, lock up
    
3. Cause to be quiet or not talk
   "The teacher shut up the noisy students";
   - hush, quieten [Brit], silence, still, hush up
    
4. (of a shop or business) close temporarily or permanently
   "Many stores shut up during the economic downturn"

1. Closely confined
   "The prisoners felt shut up in their tiny cells";
   - pent

1. Be quiet, stop talking
   - put a sock in it [informal], belt up [Brit, informal]

Derived forms: shuts up, shutting up, shut up

See also: confined

Type of: confine, conquer, forbear, refrain, stamp down, subdue, suppress

Encyclopedia: Shut up, Meg