Bolshevism vs Bolshevik

Bolshevism and Bolshevik both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bolshevism	Yes	No	No	No
Bolshevik	Yes	Yes	No	No

Bolshevism (noun)	Bolshevik (noun)
Soviet communism	emotionally charged terms used to refer to extreme radicals or revolutionaries
	a Russian member of the left-wing majority group that followed Lenin and eventually became the Russian communist party

Bolshevism (adjective)	Bolshevik (adjective)
	of or relating to Bolshevism