What does "trigamy" mean?

The state of having three (legal or illegal) spouses simultaneously.

What is a synonym for "trigamy"?

Common synonyms include: bigamy, monogamy, polyandry, polygamy.

Pronounced //ˈtɹɪ.ɡə.mi//.

/ˈtɹɪ.ɡə.mi/ noun

noun ·Rare ·Advanced level

Noun

1
The state of having three (legal or illegal) spouses simultaneously. countable, uncountable
2
A third marriage. countable, uncountable

From tri- + -gamy.