Home › Words › F › flatsharerflatsharerflatsharer · noun — A person who shares a flat (an apartment).Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom flat + sharer.nounA person who shares a flat (an apartment).e.g.“The average amount asked of flatsharers in the capital has increased by nearly 14% since 2012, to £692 a month, or £8,300 a year.” — 2015 October 2, Hilary Osborne, “Cost of flatsharing in UK's priciest towns rises by 30% in three years”, in The Guardian:Definitions & examples from Wiktionary (CC BY-SA 3.0).