imam vs imaum

imam and imaum both are nouns.

Word	Noun	Adjective	Verb	Adverb
imam	Yes	No	No	No
imaum	Yes	No	No	No

As nouns, imam and imaum are synonyms defined as:

imam and imaum: (Islam) the man who leads prayers in a mosque; for Shiites an imam is a recognized authority on Islamic theology and law and a spiritual guide

imam (noun)	imaum (noun)
(Islam) the man who leads prayers in a mosque; for Shiites an imam is a recognized authority on Islamic theology and law and a spiritual guide	(Islam) the man who leads prayers in a mosque; for Shiites an imam is a recognized authority on Islamic theology and law and a spiritual guide