but‧ton 1 S2 / bʌtn / 名词 [可数名词]

1 a small round flat object on your shirt, coat etc that you pass through a hole to fasten it :

small pearl buttons

A button was missing from his shirt.

She undid (= unfastened ) the buttons of her blouse.

do up a button British English (= fasten a button )

2 a small part or area of a machine that you press to make it do something :

Press the pause button .

Click on the icon with the right mouse button . → push-button

3 a small area on a computer screen, especially on a website, that you click on in order to perform an action

4 American English a small metal or plastic pin with a message or picture on it 同义词 badge British English :

presidential campaign buttons

5 button nose/eyes a nose or eyes that are small and round

6 on the button especially American English informal exactly right, or at exactly the right time :

She got to our house at two, on the button.

7 press/push (all) the right buttons to get what you want by behaving in a clever way :

She seemed to push all the right buttons.

8 press/push sb’s buttons to make someone angry by doing or saying something that annoys them :

He really knows how to push Dad’s buttons.

9 at/with the push/touch of a button used to emphasize how easy a machine is to use because it is controlled by pushing a button :

The instrument can gauge a distance with the push of a button.

→ as bright as a button at bright ( 7 )

COLLOCATIONS

动词

fasten a button Small children can’t fasten their own buttons.

do up a button (= fasten it ) He quickly did up the buttons on his shirt.

unfasten a button Can you unfasten this button for me?

undo a button (= unfasten it ) I can’t undo the buttons on the back of this dress.

a button is missing Two of the buttons on the jacket were missing.

a button comes off something A button has come off my skirt.

something has lost a button His favourite shirt had lost a button.

sew on a button It doesn’t take a minute to sew on a button.

ADJECTIVES/NOUN + button

the top/bottom button He was wearing a white shirt with the top button undone.

a shirt/skirt/coat etc button Is this your coat button?