Synonyms and related words :
bang, bar, barricade, batten, batten down, bolt, button, button up, choke, choke off, clap, close, close up, constrict, contain, contract, cordon, cordon off, cover, fasten, fold, fold up, isolate, key, latch, lock, lock out, lock up, occlude, padlock, plumb, quarantine, rope off, seal, seal up, seclude, secure, segregate, separate, shut, shut the door, shut up, slam, snap, squeeze shut, strangle, zip up, zipper