英和和英

perform a function

Have functions

a way of activating by pushing a button

the function iterates

to function

function correctly

a specified function

form versus function

to press the button （once, twice, three times）

action, act (human activity)

fasten buttons

provide with buttons

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

to be able to strike a key

to sew on a button

to sew a button on

place defined by function (unused place)

undo a button [a zipper]

press a button

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

to undo a button―unbutton one's coat

a button on a coat

to tap the keys of an instrument

to button it in the wrong way

physical activity (lie down)

a buttonhole

the act of controlling the ball (or puck)

implicit function

Click the button

to press a button