exogamy
/ɛksəˈɡɑːmi/Definitions
1. noun
The practice or custom of marrying outside one’s own group or tribe.
“The anthropologist studied the phenomenon of exogamy in a small village in Africa.”
2. noun
A marriage or sexual relationship between two individuals from different social or cultural groups.
“The couple’s exogamy was seen as a symbol of their love and acceptance of each other’s differences.”