· refuse to talk or stop talking; fall silent; "The children shut up when their father approached"

Synonym(s): close_up, clam_up, dummy_up, belt_up, button_up, be_quiet, keep_mum

· 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"

Synonym(s): lock_in, lock_away, lock, put_away, shut_away, lock_up

Hypernym(s): confine

· cause to be quiet or not talk; "Please silence the children in the church!"

Synonym(s): hush, quieten, silence, still, hush_up

Hypernym(s): suppress, stamp_down, subdue, conquer

· closely confined

Synonym(s): pent