From Longman Dictionary of Contemporary Englishfamily roomˈfamily ˌroom noun [countable] 1 DHHa room in a house where the family can play games, watch television etc2 a hotel room which has enough space for several people, especially parents and children, to sleep3 TBBa room in a pub in Britain where children are allowed to sit
Examples from the Corpus
family room• Turning a spare bedroom into a family room with an outdoor deck?• Little if any space was reserved for what we would call the living room or family room.• Tremayne, Mackie and Perkin were all in the family room for the usual evening drinks.• I think down in the family room would be better.• Fiona and Harry were with Mackie and Gareth in the family room.• He bit his lower lip as he looked into the family room at Karen. 