pevnost znamená v angličtina

compactness▼(state of being compact)
noun
[UK: kəm.ˈpækt.nəs] [US: kəm.ˈpækt.nəs]

fort [forts]▼(fortified defensive structure stationed with troops)
noun
[UK: fɔːt] [US: ˈfɔːrt]

fortification [fortifications]▼(that which fortifies)
noun
[UK: ˌfɔː.tɪ.fɪˈk.eɪʃ.n̩] [US: ˌfɔːr.tə.fəˈk.eɪʃ.n̩]

fortress [fortresses]▼(fortified place)
noun
[UK: ˈfɔː.trɪs] [US: ˈfɔːr.trəs]

stronghold▼(place built to withstand attack)
noun
[UK: ˈstrɒŋ.həʊld] [US: ˈstrɒŋhoʊld]