英和和英

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

undo the buttons of

fasten with buttons

to press a button

push the button down

press a button

a button on a coat

to affix a tally-impression over two folds of paper

to finger a button―fumble 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 comes off.

to press the button

sew a button on

A button comes undone

Click the button

a buttonhole

the act of affixing a seal at the joining of two papers

A button fell off.

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

at the pressing of a button

sew the button down

A button has come off

A button is off.

A button is off.

to finger a button