tattle vs uncover

tattle is a noun but uncover is not a noun.

Word	Noun	Adjective	Verb	Adverb
tattle	Yes	No	Yes	No
uncover	No	No	Yes	No

As verbs, uncover is a hypernym of tattle; that is, uncover is a word with a broader meaning than tattle:

tattle: divulge confidential information or secrets
uncover: make known to the public information that was previously known only to a few people or that was meant to be kept a secret

Other hypernyms of tattle include break, bring out, disclose, discover, divulge, expose, give away, let on, let out, reveal, unwrap.

tattle (noun)	uncover (noun)
disclosing information or giving evidence about another

tattle (verb)	uncover (verb)
speak (about unimportant matters) rapidly and incessantly	make known to the public information that was previously known only to a few people or that was meant to be kept a secret
divulge confidential information or secrets	remove all or part of one's clothes to show one's body
	reveal to view as by removing a cover