IPA: /pəˈlɪɡəmi/
KK: /pəˈlɪgəmi/
The practice of being married to more than one person at the same time.
In some cultures, polygamy is accepted and practiced openly.
Polygamy → It is formed from "poly-" (from Greek "polus", meaning many) and "gamos" (meaning marriage). The word refers to the practice of having many marriages or spouses.
Think of 'many' ('poly-') marriages ('gamos') to remember that polygamy means having multiple spouses.