be joined in matrimony
US /biː dʒɔɪnd ɪn ˈmætrɪmoʊni/
UK /biː dʒɔɪnd ɪn ˈmætrɪmoʊni/

1.
結婚する, 夫婦となる
to be married; to become husband and wife
:
•
After a long courtship, they were finally joined in matrimony.
長い交際の後、彼らはついに結婚した。
•
The couple will be joined in matrimony next spring.
そのカップルは来春結婚する予定です。