另一半 的英文怎么说?

[1] significant other[2] boyfriend; girlfriend; husband; wife

"另一半" 有很多說法，例如 boyfriend, girlfriend, husband, wife 等，另外，有個英文滿貼切的，就是 significant other，可指男女朋友或配偶，例如:

You and your significant other are cordially invited to the Class 2017 Reunion next month in Taipei, Taiwan.