better half

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a person's partner in marriage
• Syn:
spouse, partner, married person, mate
• Derivationally related forms:
mate (for: mate), spousal (for: spouse)
• Hypernyms:
relative, relation, domestic partner, significant other, spousal equivalent, spouse equivalent
• Hyponyms:
bigamist, consort, helpmate, helpmeet, husband,
hubby, married man, monogamist, monogynist, newlywed, honeymooner,
polygamist, wife, married woman
• Member Holonyms:
marriage, married couple, man and wife