roommate
noun
ˈruːmˌmeɪt
noun
1
someone
who
you
share
a
room
with,
especially
at
college
〔尤指大学里的〕室友
one
of
my
college
roommates
我大学里的一个室友
2
someone
you
share
an
apartment
or
house
with
[美] 同住一套公寓 （一幢房子 ）的人;
AmE BrE