a small round piece of metal, plastic, etc. that is sewn onto a piece of clothing and used for fastening two parts together

a small part of a machine that you press to make it work

Adam pressed a button and waited for the lift.

Choose ‘printer’ from the menu and click with the right mouse button.

She pushed a button on the control panel.

I hit the play button on the remote.

The windows slide down at the touch of a button.

With a push of a button, I can print out everything I need.

a small area on a computer screen that you click on to make it do something

Click on the back button to go back to the previous screen.

Click the ‘Finish’ button in the top right-hand corner of the screen.

I hit the ‘Reply’ button in the mail toolbar.

a badge, especially one with a message printed on it

He wore a button saying ‘Life begins at 40!’

to fasten something with buttons; to fasten the buttons on a piece of clothing somebody is wearing

The dress buttons (up) at the back.

LEARNit Dictionary