salesperson vs employee

salesperson and employee both are nouns.

Word	Noun	Adjective	Verb	Adverb
salesperson	Yes	No	No	No
employee	Yes	No	No	No

As nouns, employee is a hypernym of salesperson; that is, employee is a word with a broader meaning than salesperson:

salesperson: a person employed to represent a business and to sell its merchandise (as to customers in a store or to customers who are visited)
employee: a worker who is hired to perform a job

salesperson (noun)	employee (noun)
a person employed to represent a business and to sell its merchandise (as to customers in a store or to customers who are visited)	a worker who is hired to perform a job