flatmate
/ˈflatmeɪt
/noun British
A person who shares a flat with others: my flatmate moved out a month ago...
- I met my wife when I had a flat at Glasgow's waterfront and needed a flatmate to share.
- I must find a way to get more money, a flatmate and a new flat.
- Now everyone knows who I have a ‘crush’ on, as my flatmates demanded his friends give me his number.