1. small round objects sewn onto clothing that are pushed through holes to fasten garments
Usage: plural of button
2. small round controls that are pressed to operate machines or devices
Usage: plural of button
3. small round badges worn to show support for a cause or candidate
Usage: plural of button; informal

Examples

• She sewed new buttons onto her coat.
• The shirt was missing two buttons.
• Press the red buttons to stop the machine.
• The elevator buttons weren’t working properly.
• Campaign volunteers handed out buttons at the rally.
• He collected vintage political buttons from the 1960s.
• The jacket has brass buttons down the front.