it is a noun
The people from that town were heathen.
Yes, heathen is the correct spelling.
adverb
A person who is not part of a widely held (organised) religion. This terminology is used by people in said religions.
what part of speech is beneath
The plural of heathen is heathens.
The people from that town were heathen.
Yes, heathen is the correct spelling.
Heathen Machine was created in 2002.
Heathen Front was created in 1993.
Heathen Beast was created in 2010.
The Heathen Chinee was created in 1870.
Heathen Harvest was created in 2003.
Heathen City was created in 2008.
Heathen - The Rays - was created in 2002.
The Last Heathen was created in 2004.
The part of speech for this particular word is a noun.