/pɑlɪdʒəni/ – Noun
Definition: chế độ nhiều vợ, chế độ đa thê.
A more thorough explanation: Polygyny is a form of polygamy in which a man is permitted to have more than one wife at the same time.
Example: Polygyny is a form of marriage in which a man is allowed to have more than one wife at the same time.