noun
same-sex marriage; gay marriage
Refers to marriage between two people of the same sex. The term 同性婚 is a common synonym.
See also: 同性婚
日本では同性結婚はまだ法的に認められていない。
Same-sex marriage is not yet legally recognized in Japan.
彼女は同性結婚の権利を求めて活動している。
She is campaigning for the right to same-sex marriage.