acquittance vs legal document

acquittance and legal document both are nouns.

Word	Noun	Adjective	Verb	Adverb
acquittance	Yes	No	No	No
legal document	Yes	No	No	No

As nouns, legal document is a hypernym of acquittance; that is, legal document is a word with a broader meaning than acquittance:

acquittance: a legal document evidencing the discharge of a debt or obligation
legal document: (law) a document that states some contractual relationship or grants some right

Other hypernyms of acquittance include instrument, legal instrument, official document.

acquittance (noun)	legal document (noun)
a legal document evidencing the discharge of a debt or obligation	(law) a document that states some contractual relationship or grants some right