unionism vs trade unionism

unionism and trade unionism both are nouns.

Word	Noun	Adjective	Verb	Adverb
unionism	Yes	No	No	No
trade unionism	Yes	No	No	No

As nouns, unionism and trade unionism are synonyms defined as:

unionism and trade unionism: the system or principles and theory of labor unions

unionism (noun)	trade unionism (noun)
the system or principles and theory of labor unions	the system or principles and theory of labor unions