documentation vs validation

documentation and validation both are nouns.

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

As nouns, validation is a hypernym of documentation; that is, validation is a word with a broader meaning than documentation:

documentation: documentary validation
validation: the act of validating; finding or testing the truth of something

Other hypernyms of documentation include proof, substantiation.

documentation (noun)	validation (noun)
documentary validation	the act of validating; finding or testing the truth of something
confirmation that some fact or statement is true through the use of documentary evidence	the cognitive process of establishing a valid proof
program listings or technical manuals describing the operation and use of programs