aroma, bar, bind, block, block up, blockade, breath, bung, caulk, chink, choke, choke off, choke up, clog, clog up, congest, constipate, cork, cover, dam, dam up, definite odor, detectable odor, effluvium, emanation, essence, exhalation, fetor, fill, fill up, flavor, foul, foul odor, fragrance, fume, funk, jam, mephitis, noisomeness, obstipate, obstruct, odor, pack, plug, plug up, redolence, reek, savor, scent, smell, spile, spoor, stanch, stay, stink, stop, stop up, stopper, stopple, stuff, stuff up, subtle odor, trace, trail, whiff