what's the difference between "chat" and "talk“
what's the difference between "chat" and "talk“ .Which one we can use to describe the dialoge we type on Skype.

Question

Answer

to chat -  to engage in an informal/easy/familiar/casual conversation.
to talk - to express thoughts by way of spoken language

Answer

"Chat" usually refers to taking part in a discussion with someone on the internet or talking to someone in friendly, informal way.
"Talk" refers saying words and speaking to someone.

"Chat" would be used to refer to a conversation on Skype.

Here's another useful thread to help you tell the difference between the two: http://www.italki.com/question/181188