| fence(noun, cover, position, block, bar) |
| barricade(noun, support, cover, position, block) |
| barrier(noun, defense, obstruction, jail, prison) |
| palisade(noun, cover, position, block, bar) |
| wall(noun, cover, position, block, bar) |
| prison(noun, field, pen, cell, arena) |
| pen(noun, hold, curb, field, commit) |
| enclosure(noun, area, block, bar, field) |
| jail(noun, verb, hold, place, field) |
| parapet(noun, support, cover, position, block) |
| penitentiary(noun, jail, prison, enclosure) |
| bar(obstruction, prison, blockade, fence, divider) |
| bastille(noun, verb, hold, cover, position) |
| bulwark(noun, support, cover, position, block) |
| cell(noun, keep, field, pen, arena) |
| concentration camp(noun, expression, idiom) |
| coop(noun, field, pen, arena, barrier) |
| dungeon(noun, field, pen, cell, arena) |
| fortification(noun, cover, position, block, bar) |
| keep(noun, verb, hold, commit, confine) |