Definitions

1. noun

a conversation, especially an informal one

“She spent the afternoon having a nice chat with her friend.”

2. verb

to talk or converse with someone

“They chatted with each other until late at night.”

3. verb

to type a message to someone on the internet, especially on a social media platform

“She chatted with her friend online.”

4. noun

a software program that allows people to talk to each other over the internet

“The chat program on the website was easy to use.”