| drawback(noun, difficulty, hindrance, problem, disadvantage) |
| embolus(noun, hindrance, barrier, closure) |
| exclude(verb, close, block, bar, obstruct) |
| fence(noun, close, end, secure, block) |
| halt(verb, stop, close, block, prevent) |
| hem in(verb, expression, support, secure, contain) |
| interruption(noun, hindrance) |
| occlusion(noun, stop, discharge, separation, rejection) |
| opposition(noun, hindrance) |
| preclusion(noun, hindrance, prohibition) |
| quarantine |
| roadblock(noun, break, end, block, bar) |
| shut in(verb, expression, phrasal verb, secure, block) |
| shut off(verb, expression, phrasal verb, stop, close) |
| arrest(verb, stop, close, halt, block) |
| attack(noun, verb, harass, search, trap) |
| bolt(noun, verb, stop, close, secure) |
| bottleneck(noun, hindrance) |
| bound(verb, contain, trap, round, circle) |
| brake(noun, verb, stop, control, close) |