roommate
noun [ C ] uk/ˈruːm.meɪt/ /ˈrʊm.meɪt/ us/ˈruːm.meɪt/ /ˈrʊm.meɪt/
A2 舍友，室友，合租一室的人
a person who you share a room with for a period of time
Jean was my roommate during our first year at college. 琼和我大学一年级时是室友。
B2 US (also housemate); (UK flatmate)同住一套公寓房的人;合租一套公寓房的人
a person who you share an apartment or house with
Ethan's moving out next month, so we're looking for another roommate to share our apartment. 伊森下个月就要搬出去了，所以我们正在另找一位合租者住进来。