Synonyms and related words :
bar, barrier, blank wall, blind alley, blind gut, block, blockade, blockage, bottleneck, cecum, choking, choking off, clog, congestion, constipation, costiveness, cul-de-sac, dead end, embolus, gorge, impasse, impediment, infarct, infarction, jam, obstacle, obstipation, obstruction, sealing off, stop, stoppage, strangulation,