significant other
US /sɪɡˈnɪf.ɪ.kənt ˈʌð.ər/
UK /sɪɡˈnɪf.ɪ.kənt ˈʌð.ər/

1.
배우자, 연인
a person with whom someone has a long-term, committed relationship, especially one who is not a spouse but is considered a partner in life
:
•
She introduced him to her significant other at the party.
그녀는 파티에서 그를 배우자에게 소개했다.
•
Many people prefer to use 'significant other' instead of 'boyfriend' or 'girlfriend' to be more inclusive.
많은 사람들이 더 포괄적으로 '남자친구'나 '여자친구' 대신 '배우자'를 사용하는 것을 선호한다.