sharing a room or apartment; having a roommate/flatmate
Wasei-eigo from English 'room share'. Refers to the arrangement of sharing a living space with someone who is not family, typically to split rent and expenses.
wasei-eigo (Japanese-coined English), from room share
I'm looking for a room share in Tokyo.
My living expenses went down after I started sharing an apartment.
Variant with interpunct; less common but seen in some contexts.
Wasei-eigo derived from English 'room' and 'share'. The term is not used in English with the same meaning; in Japanese it specifically refers to the practice of sharing a rented room or apartment with non-family members.