| bulwark(noun, bar, obstruction, divider) |
| close in(expression, contain, trap, round, circle) |
| close off(verb, expression, phrasal verb, stop, close) |
| close up(verb, expression, phrasal verb) |
| congestion(noun, hindrance) |
| coop(verb, cover, circle, ring, surround) |
| cover(verb, close, separate, bar, expel) |
| dam up(verb, expression, phrasal verb, closure) |
| delay(noun, hindrance) |
| deterrent(noun, hindrance) |
| encompass(verb, support, secure, contain, trap) |
| exclusion(noun, expulsion, forbiddance) |
| fortify(verb, support, secure, block, brace) |
| foul |
| hamper(noun, verb, block, difficulty, contain) |
| handicap(noun, difficulty, hindrance, problem, obstacle) |
| harry(verb, attack, annoy, harass, search) |
| impasse(noun, hindrance) |
| impede(verb, stop, control, close, halt) |
| include(verb, cover, circle, ring, surround) |