gossip vs tattletale

gossip and tattletale both are nouns.

Word	Noun	Adjective	Verb	Adverb
gossip	Yes	No	Yes	No
tattletale	Yes	No	No	No

As nouns, tattletale is a hyponym of gossip; that is, tattletale is a word with a more specific, narrower meaning than gossip:

gossip: a person given to gossiping and divulging personal information about others
tattletale: someone who gossips indiscreetly

Other hyponyms of gossip include cat, scandalmonger, blabbermouth, talebearer, taleteller, tattler, telltale, yenta.

gossip (noun)	tattletale (noun)
light informal conversation for social occasions	someone who gossips indiscreetly
a report (often malicious) about the behavior of other people
a person given to gossiping and divulging personal information about others

gossip (verb)	tattletale (verb)
wag one's tongue; speak about others and reveal secrets or intimacies
talk socially without exchanging too much information