| occlude(verb, stop, close, check, halt) |
| safeguard(noun, verb, cover, position, defend) |
| shelter(noun, verb, cover, position, defend) |
| shut off(verb, expression, phrasal verb, stop, close) |
| stockade(noun, support, cover, position, block) |
| jump(noun, obstacle, fence, wall) |
| armor(noun, cover, position, guard, shield) |
| battlement(noun, support, keep, defense, wall) |
| blank wall(noun, expression, idiom, end, block) |
| block off(verb, expression, phrasal verb) |
| buffer(noun, verb, defend, hindrance, defense) |
| choke(verb, stop, control, close, check) |
| close off(verb, expression, phrasal verb, stop, close) |
| defend(verb, secure, block, defend, protect) |
| earthwork(noun, support, keep, defense, fortification) |
| enclosure |
| oppose(verb, prevent, hinder, defend, impede) |
| seal(verb, close, secure, block, fasten) |
| shield(noun, verb, cover, check, position) |
| shut(verb, close) |