fortification
[noun]
Synonyms:
- defence, bastion, fastness, fort, fortress, protection, stronghold
- strengthening, reinforcement

[TahlilGaran] English Synonym Dictionary ▲

for‧ti‧fi‧ca‧tion /ˌfɔːtəfəˈkeɪʃən, ˌfɔːtɪfəˈkeɪʃən $ ˌfɔːr-/ noun

1. [uncountable] the process of making something stronger or more effective

2. fortifications [plural] towers, walls etc built around a place in order to protect it or defend it:
a site of ancient fortifications dating from about 500 B.C.

[TahlilGaran] Dictionary of Contemporary English ▲