borrower vs freeloader

borrower and freeloader both are nouns.

Word	Noun	Adjective	Verb	Adverb
borrower	Yes	No	No	No
freeloader	Yes	No	No	No

As nouns, freeloader is a hyponym of borrower; that is, freeloader is a word with a more specific, narrower meaning than borrower:

borrower: someone who receives something on the promise to return it or its equivalent
freeloader: someone who takes advantage of the generosity of others

borrower (noun)	freeloader (noun)
someone who receives something on the promise to return it or its equivalent	someone who takes advantage of the generosity of others