discovery vs insight

discovery and insight both are nouns.

Word	Noun	Adjective	Verb	Adverb
discovery	Yes	No	No	No
insight	Yes	No	No	No

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

Other hypernyms of discovery include brainstorm, brainwave.

discovery (noun)	insight (noun)
the act of discovering something	grasping the inner nature of things intuitively
a productive insight	the clear (and often sudden) understanding of a complex situation
something that is discovered	clear or deep perception of a situation
(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	a feeling of understanding