discovery vs human action

discovery and human action both are nouns.

Word	Noun	Adjective	Verb	Adverb
discovery	Yes	No	No	No
human action	Yes	No	No	No

As nouns, human action is a hypernym of discovery; that is, human action is a word with a broader meaning than discovery:

Other hypernyms of discovery include act, deed, human activity.

discovery (noun)	human action (noun)
the act of discovering something	something that people do or cause to happen
a productive insight
something that is discovered
(law) compulsory pretrial disclosure of documents relevant to a case; enables one side in a litigation to elicit information from the other side concerning the facts in the case