class warfare vs class struggle

class warfare and class struggle both are nouns.

Word	Noun	Adjective	Verb	Adverb
class warfare	Yes	No	No	No
class struggle	Yes	No	No	No

As nouns, class warfare and class struggle are synonyms defined as:

class warfare and class struggle: conflict between social or economic classes (especially between the capitalist and proletariat classes)

Other synonyms of class warfare include class war.

class warfare (noun)	class struggle (noun)
conflict between social or economic classes (especially between the capitalist and proletariat classes)	conflict between social or economic classes (especially between the capitalist and proletariat classes)