As nouns the difference between bigam and bigamy
is that bigam is (obsolete) a bigamist while bigamy is the state of having two (legal or illegal) spouses simultaneously.
bigamy
English
Noun
(bigamies)
The state of having two (legal or illegal) spouses simultaneously
(ecclesiastical) A second marriage
Synonyms
* (a second marriage) digamy, deuterogamy
Derived terms
* bigamist
* bigamous
Related terms
* monogamy
* polygamy
See also
* bi-
* -gamy
* polyamory
* polyandry
* polygyny
* plural marriage