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

1.
pasangan hidup, kekasih
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.
Dia memperkenalkannya kepada pasangan hidupnya di pesta.
•
Many people prefer to use 'significant other' instead of 'boyfriend' or 'girlfriend' to be more inclusive.
Banyak orang lebih suka menggunakan 'pasangan hidup' daripada 'pacar' untuk menjadi lebih inklusif.