nööpima tähendus null.

button▼◼◼◼[UK: ˈbʌt.n̩] [US: ˈbʌt.n̩]

unbutton [unbuttoned, unbuttoning, unbuttons]▼◼◼◼verb
[UK: ʌn.ˈbʌt.n̩] [US: ʌn.ˈbət.n̩]