| Main Entry: | citadel |
| Part of Speech: | noun |
| Definition: | top, tower |
Synonyms: |
bastion, blockhouse, castle, fastness, fort, fortification, fortress, keep, manor, redoubt, stronghold |
| Main Entry: | fort/fortress |
| Part of Speech: | noun |
| Definition: | stronghold |
Synonyms: |
acropolis, blockhouse, camp, castle, citadel, fastness, fortification, garrison, redoubt, station |
| Main Entry: | fortification |
| Part of Speech: | noun |
| Definition: | reinforced position |
Synonyms: |
barricade, barrier, bastion, battlement, block, blockhouse, breastwork, buffer, bulwark, castle, citadel, consolidation, defense, earthwork, embattlement, entrenchment, fastness, fort, fortress, garrison, keep, outpost, parapet, preparation, presidio, protection, reinforcement, stockade, strengthening, stronghold, support, wall |
| Main Entry: | bunker |
| Part of Speech: | noun |
| Definition: | underground shelter |
Synonyms: |
blockhouse, dugout, fortification, shelter |
| Main Entry: | fort |
| Part of Speech: | noun |
| Definition: | stronghold |
Synonyms: |
acropolis, blockhouse, camp, castle, citadel, fastness, fortification, fortress, garrison, redoubt, station |