Islamist vs Islam

Islamist and Islam both are nouns.

Word	Noun	Adjective	Verb	Adverb
Islamist	Yes	No	No	No
Islam	Yes	No	No	No

Islamist (noun)	Islam (noun)
an orthodox Muslim	the monotheistic religious system of Muslims founded in Arabia in the 7th century and based on the teachings of Muhammad as laid down in the Koran
a scholar who is knowledgeable in Islamic studies	the civilization of Muslims collectively which is governed by the Muslim religion