group marriage
nounUK /ɡruːp ˈmærɪdʒ/
US /ɡruːp ˈmærɪdʒ/
A group marriage is when more than two people are all married to each other at the same time.
In a group marriage, several adults share one family and take care of each other.
OTHER MEANINGS
2. A living arrangement in which three or more adults form a single committed household.
The three partners described their group marriage as a team effort.
3. A marriage system found in some small societies where several sisters share one husband or several brothers share one wife.
Anthropologists studied group marriage customs in the community.
4. Any marriage involving more than two spouses at once.
The law did not recognize group marriage in that country.