saleswoman vs woman

saleswoman and woman both are nouns.

Word	Noun	Adjective	Verb	Adverb
saleswoman	Yes	No	No	No
woman	Yes	No	No	No

As nouns, woman is a hypernym of saleswoman; that is, woman is a word with a broader meaning than saleswoman:

Other hypernyms of saleswoman include sales rep, sales representative, salesperson, adult female.

saleswoman (noun)	woman (noun)
a woman salesperson	women as a class
	an adult female person (as opposed to a man)
	a female person who plays a significant role (wife or mistress or girlfriend) in the life of a particular man