detection vs discovery

detection and discovery both are nouns.

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

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

Other hypernyms of detection include find, uncovering.

detection (noun)	discovery (noun)
the act of detecting something; catching sight of something	the act of discovering something
a police investigation to determine the perpetrator	a productive insight
the perception that something has occurred or some state exists	something that is discovered
the detection that a signal is being received	(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