This is the 3997th most frequent Japanese word.
チャット
Chat (online or casual conversation).
In this sentence, 'チャットする (chat suru)' is used as a verb indicating the act of chatting with someone.
友達とチャットするのが楽しいです。
Chatting with friends is enjoyable.
Here, 'チャット (chat)' is used as a noun, referring to the communication feature enabled by the app.
このアプリでは簡単にチャットができます。
With this app, you can easily chat.
In this example, 'チャット (chat)' is used to describe the medium of communication utilized for sharing information.