Home › Words › F › flatshareflatshareflatshare means an arrangement in which two or more people share a flat (apartment building).Among words judged in Lexicurio's Arena, flatshare ranks #26,236 of 42,762 for Qualifying.EtymologyFrom flat + share.nounAn arrangement in which two or more people share a flat (apartment building).verbTo share a flat (apartment building) with someone else.Definitions & examples from Wiktionary (CC BY-SA 3.0).