button · noun C /ˈbʌt.ən/
button (ON MACHINE)
B1 a switch that you press to control a piece of equipment
Dictionary example:
He inserted the DVD and pressed the 'play' button.
Learner example:
I could have written a letter in a bottle but waiting for the answer would take a decade, now [with email] it's just a click of a button. (Preliminary English Test; B1; Arabic)
button (ON CLOTHING)
B1 a small, round object used to fasten something, for example a shirt or coat
Dictionary example:
I did up/undid the buttons on my blouse.
Learner example:
It was a long dress with some square buttons [on the] front of it. (Preliminary English Test; B1; Italian)
