acquirer vs doer

acquirer and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
acquirer	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of acquirer; that is, doer is a word with a broader meaning than acquirer:

Other hypernyms of acquirer include actor, worker.

acquirer (noun)	doer (noun)
a corporation gaining financial control over another corporation or financial institution through a payment in cash or an exchange of stock	a person who acts and gets things done
the financial institution that dispenses cash in automated teller machines and collects a fee from the bank that issued the credit card
a credit card processing bank; merchants receive credit for credit card receipts less a processing fee
a person who acquires something (usually permanently)