wedlock
1. [ noun ] (law,sociology) the state of being a married couple voluntarily joined for life (or until divorce)
Synonyms: marriage matrimony spousal_relationship union
Examples:

"a long and happy marriage" "God bless this union"

Related terms: marital_status exogamy misalliance endogamy common-law_marriage polygamy sigeh monandry monogamy polyandry monogamousness open_marriage polygamy marriage_of_convenience bigamy law