Meanings of flat share in English

They were sitting in Patrik's flat sharing a bottle of wine after having dinner together.

Gone too of course was the TV and video in the flat shared with four other journalists, together with my snowboard.

Think about how much time they spend together: all those writing days, rehearsal sessions, car journeys, late-night gigs, the Edinburgh festival, flat shares.

This is Crow, who sweeps into a London flat shared by Dad, his two young sons and, until a very recent tragedy, their mother.