bachelor apartmentEnglishOxford Dictionary of Englishbachelor apartment /ˈbatʃ(ə)lə(r) əˌpɑːtm(ə)nt , ˈbatʃələ(r) əˌpɑːtm(ə)nt / ▸ noun North American English an apartment consisting of a single large main room; a studio flat: he is sitting on his couch in his small, messy bachelor apartment.