talk vs gossip

talk and gossip both are nouns.

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

As nouns, gossip is a hypernym of talk; that is, gossip is a word with a broader meaning than talk:

Other hypernyms of talk include comment, scuttlebutt.

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

talk: exchange thoughts; talk with
gossip: wag one's tongue; speak about others and reveal secrets or intimacies

talk (noun)	gossip (noun)
the act of giving a talk to an audience	light informal conversation for social occasions
an exchange of ideas via conversation	a report (often malicious) about the behavior of other people
idle gossip or rumor	a person given to gossiping and divulging personal information about others
a speech that is open to the public
discussion; (`talk about' is a less formal alternative for `discussion of')

talk (verb)	gossip (verb)
express in speech	wag one's tongue; speak about others and reveal secrets or intimacies
exchange thoughts; talk with	talk socially without exchanging too much information
reveal information
use language
deliver a lecture or talk
divulge confidential information or secrets