Definition of “chat” - Learner’s Dictionary


verb [ I ] uk us /tʃæt/ (present participle chatting, past tense and past participle chatted)

A2 to talk with someone in a friendly and informal way:

I wanted to chat to you about the party on Saturday.

to have a conversation with other people on the Internet, when you write down what you want to say, and can see immediately what other people are writing

(Definition of “chat verb” from the Cambridge Learner's Dictionary © Cambridge University Press)