women's lib vs feminism

women's lib and feminism both are nouns.

Word	Noun	Adjective	Verb	Adverb
women's lib	Yes	No	No	No
feminism	Yes	No	No	No

As nouns, women's lib and feminism are synonyms defined as:

Other synonyms of women's lib include feminist movement, women's liberation movement.

women's lib (noun)	feminism (noun)
the movement aimed at equal rights for women	the movement aimed at equal rights for women
	a doctrine that advocates equal rights for women