Islamism vs Alawism

Islamism and Alawism both are nouns.

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

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

Islamism: 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 Islamism include Mahdism, Salafi movement, Salafism, Shiism, Wahabism, Wahhabism, Ash'arism.

Islamism (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.
a fundamentalist Islamic revivalist movement generally characterized by moral conservatism and the literal interpretation of the Koran and the attempt to implement Islamic values in all aspects of life