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button

/ˈbʌt.ən/
IELTSAcademic
noun
  1. 1.

    A small object used to fasten clothes, bags, or other things. It is usually round and has holes or a back loop.

    • Her shirt has two missing buttons.
    • Press the button to close the bag.
  2. 2.

    A small switch on a machine, phone, or device that you press to make it work.

    • Push the red button to start the machine.
    • The elevator button is stuck.
verb

To fasten something with buttons, or to attach a button to clothes.

  • Please button your coat before you go out.
  • She buttoned the jacket quickly.

Adinary Nuance

Button is more specific than switch or control when you mean the thing you press. It is also different from fastener, which is a broader word for anything that closes clothing or objects. In clothing, button usually refers to the small round piece itself, while zipper is a different kind of closure.

In other languages

Vietnamese
cúc áo
Spanish
botón
Chinese
按钮
Japanese
ボタン
Korean
버튼

Etymology

Button came into English from Old French in the Middle Ages. It was originally linked to a small bud or knob, then became the word for a fastener.

Common phrases

press a buttonpush a buttonbutton upbuttoned shirt

Synonyms

Related words

Frequently asked questions

Is button a noun or a verb?
It is both. As a noun, it means a small fastener or a control you press. As a verb, it means to fasten with buttons.
What is the difference between button and switch?
A button is usually something you press. A switch usually changes between on and off positions.
Is button formal or informal?
It is a very common, neutral word. You can use it in everyday speech, business writing, and technical writing.
What does button up mean?
It can mean to fasten clothing with buttons. It can also mean to finish and secure a plan or activity.