tóng​jū

cohabit

同居 tóng​jū
cohabit verb
to live together as a romantic couple without being legally married

They lived together for two years before getting married.

live together verb
to live together in the same house or residence, often referring to family members

Four generations of this large family live together, living very harmoniously.

Frequency

Movie subtitles
5.87 per million appears in 2% of films
Written text
6.20 per million

Sources

Definitions
CC-CEDICT