debt instrument vs document

debt instrument and document both are nouns.

Word	Noun	Adjective	Verb	Adverb
debt instrument	Yes	No	No	No
document	Yes	No	Yes	No

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

debt instrument (noun)	document (noun)
a written promise to repay a debt	anything serving as a representation of a person's thinking by means of symbolic marks
	writing that provides information (especially information of an official nature)
	(computer science) a computer file that contains text (and possibly formatting instructions) using seven-bit ASCII characters
	a written account of ownership or obligation

debt instrument (verb)	document (verb)
	support or supply with references
	record in detail