THESAURUS
Occlude
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
ROGET THESAURUS
Occlude
Closure
VB
close, occlude, plug, block up, stop up, fill up, bung up, cork up, button up, stuff up, shut up, dam up, blockade, obstruct, bar, bolt, stop, seal, plumb, choke, throttle, ram down, dam, cram, trap, clinch, put to the door, shut the door.