fortification
Longman Dictionary of Contemporary English 5++LDOCE 5++for·ti·fi·ca·tion /ˌfɔːtɪfɪˈkeɪʃən $ ˌfɔːr-/ noun 1. STRONG OBJECT[uncountable] the process of making something stronger or more effective 强化，加强2 fortifications [plural] towers, walls etc built around a place in order to protect it or defend it 防御工事〔如塔楼、城垣等〕 a site of ancient fortifications dating from about 500 B.C. 公元前500年左右的一个古代防御工事遗址
Examples from the Corpus
fortification• Any delay, they believed, allowed the enemy to withdraw or wait out the storm in his field fortifications.• Large sums might also be required for fortifications, especially from 1588 onwards.• Glastonbury Tor and Avebury Where later societies put great resources into fortification the Neolithic people built monuments.• They are my defense, my fortification.• If there are no serious problems, the level of fortification would automatically increase.• The sides of the arch were destroyed in the Middle Ages when it was incorporated in the fortifications.• At this time fortifications consisted mainly of earth banks and wooden palisades.• Many of the small towns were supplied with fortifications during their lifetime.for·ti·fi·ca·tion nounChineseSyllable
process Corpus or the effective stronger of making more something
fortification
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.
for‧ti‧fi‧ca‧tion /ˌfɔːtəfəˈkeɪʃən, ˌfɔːtɪfəˈkeɪʃən $ ˌfɔːr-/
noun1. [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: