documentation vs document

documentation and document both are nouns.

Word	Noun	Adjective	Verb	Adverb
documentation	Yes	No	No	No
document	Yes	No	Yes	No

documentation (noun)	document (noun)
documentary validation	anything serving as a representation of a person's thinking by means of symbolic marks
confirmation that some fact or statement is true through the use of documentary evidence	writing that provides information (especially information of an official nature)
program listings or technical manuals describing the operation and use of programs	(computer science) a computer file that contains text (and possibly formatting instructions) using seven-bit ASCII characters
	a written account of ownership or obligation

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