英和和英

Click the button

to press a button

push the button down

at the pressing of a button

to press the button

press a button

to finger a button―fumble a button

to sew on a button

to sew a button on

fasten buttons

provide with buttons

to fasten one's coat with buttons―button one's coat

to undo a button―（上衣のボタンなら）―unbutton one's coat

to undo a button―unbutton one's coat

fasten with buttons

undo the buttons of

to make a thumb-print （on a document）―seal a document with a thumb-print

a push button on the mouse

A button comes undone―（靴のボタンなら）―A shoe comes unbuttoned.

a click on the right button for example

to fasten a coat with buttons―button up a coat

You have only to press the button.

A button comes off.

press the Enter key

sew a button on

to finger a button

a way of activating by pushing a button

A button comes undone

Press the button, and the bell will ring.

sew the button down