Muslimism vs Alawism

Muslimism and Alawism both are nouns.

Word	Noun	Adjective	Verb	Adverb
Muslimism	Yes	No	No	No
Alawism	Yes	No	No	No

As nouns, Alawism is a hyponym of Muslimism; that is, Alawism is a word with a more specific, narrower meaning than Muslimism:

Muslimism: 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
Alawism: a branch of Shiism practiced especially in northwest Syria and adjacent parts of Turkey and Lebanon.

Other hyponyms of Muslimism include Mahdism, Salafi movement, Salafism, Shiism, Wahabism, Wahhabism, Ash'arism.

Muslimism (noun)	Alawism (noun)
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 branch of Shiism practiced especially in northwest Syria and adjacent parts of Turkey and Lebanon.
the civilization of Muslims collectively which is governed by the Muslim religion