concubinato znamená v Angličtina

cohabitation [cohabitations]▼(act of living together)
noun
[UK: ˌkəʊ.hæ.bɪ.ˈteɪʃ.n̩] [US: ˌkoʊ.hæ.bɪ.ˈteɪʃ.n̩]

concubinage▼(the state of cohabitating while not married)
noun
[UK: kanˈkjuː.bə.nədʒ] [US: kanˈkjuː.bə.nədʒ]