button

• 衣服上用于扣合的小而常为圆形的扣件，或用于启动设备或功能的开关。

A small, often round, fastener used to secure clothing or a small switch used to activate a device or function.

1. Clothing fastenerA1formal

   A small disc or knob sewn onto a garment to fasten it by passing through a buttonhole.

   纽扣

   • He sewed a button back onto his shirt.
   • The coat has large wooden buttons.
   • She buttoned up her jacket quickly.

2. Device controlA1formal

   A small switch or knob on a machine, device, or electronic interface that is pressed to operate it.

   按钮

   • Press the red button to start the machine.
   • The elevator button was stuck.
   • He clicked the button on his mouse to open the file.

   同义词controlkeyknobpush buttonswitch

3. A2informal

   A small badge or pin worn to show support for a cause, membership, or identification.

   徽章

   • She wore a campaign button on her jacket.
   • The volunteers handed out buttons with the charity logo.
   • He collected buttons from different political rallies.

   同义词badgeembleminsigniapin

• 动词，表示用纽扣或按扣等将衣物、包袋等扣上、系紧或闭合。

A verb used to indicate the act of fastening or closing something with a button.

1. Fasten with a buttonA2formal

   To close or secure something using a button.

   扣上扣子

   • She buttoned her coat before going outside.
   • He buttoned his shirt all the way up.
   • Please button your jacket; it's cold outside.

   同义词button updo upfasten

   反义词unbutton

2. A2informal

   To press a button on a device to activate or control it.

   按下按钮

   • He buttoned the remote to turn on the TV.
   • She buttoned the start button on the microwave.
   • You need to button the 'send' key to submit the form.

短语动词变体button up