IPA: //ˈbɪɡəˌmɪst//
KK: /ˈbɪɡəˌmɪst/
A person who is married to two people at the same time, which is illegal in many places.
The bigamist was arrested for marrying another woman while still being married to his first wife.
Bigamist → It is formed from "bi-" (meaning two) and "gamos" (from Greek, meaning marriage). The word describes someone who is married to two people at the same time.
Think of 'two' ('bi-') marriages ('gamos') to remember that a bigamist is someone who has two spouses.