millenarism vs chiliasm

millenarism and chiliasm both are nouns.

Word	Noun	Adjective	Verb	Adverb
millenarism	Yes	No	No	No
chiliasm	Yes	No	No	No

As nouns, millenarism and chiliasm are synonyms defined as:

millenarism and chiliasm: belief in the Christian doctrine of the millennium mentioned in the Book of Revelations

Other synonyms of millenarism include millenarianism, millenniumism.

millenarism (noun)	chiliasm (noun)
belief in the Christian doctrine of the millennium mentioned in the Book of Revelations	belief in the Christian doctrine of the millennium mentioned in the Book of Revelations