Main entry: keep mum, dummy up, belt up, be quiet, shut up, clam up, close up, button up
Definition: refuse to talk or stop talking; fall silent
Usage: The children shut up when their father approached
Definition: unite or bring into contact or bring together the edges of
Usage: close the circuit; close a wound; close a book; close up an umbrella
Main entry: jam, close up, block, impede, obstruct, obturate, occlude
Definition: block passage through
Usage: obstruct the path
Main entry: close, close down, close up, shut down, fold
Definition: cease to operate or cause to cease operating
Usage: The owners decided to move and to close the factory; My business closes every night at 8 P.M.; close up the shop
Main entry: close up, at close range
Definition: very close
Usage: without my reading glasses I can hardly see things close up; even firing at close range he missed