Synonyms and related words :
bang, bar, barricade, batten, batten down, block, block up, blockade, bolt, button, button up, chock, choke, choke off, clap, clog, close, close off, close tight, close up, congest, constrict, contain, contract, cover, crowd, debar, dog, fasten, fold, fold up, jam, key, latch, lock, lock out, lock up, obstruct, pack, padlock, plug, plumb, seal, seal off, seal up, secure, shut, shut off, shut out, shut the door, shut tight, shut up, slam, snap, squeeze, squeeze shut, stifle, stop, stop up, stopper, strangle, strangulate, suffocate, zip up, zipper