messagebutton

noun
UK /ˈmɛsɪdʒ ˈbʌtən/
US /ˈmɛsɪdʒ ˈbʌtən/

A message button is a small thing you press to send or open a message.

Tap the message button to send a note to your friend.


OTHER MEANINGS

2. A button on a phone or app that opens a chat screen.

She pressed the message button to read her texts.

3. A physical button on a device that starts a voice or text message.

The toy has a message button that plays a recorded greeting.

4. A clickable icon on a website that lets a visitor contact the owner.

Click the message button at the bottom of the page to ask a question.