反 (faan2) — turn over; reverse; turn around in Cantonese

Stop changing your mind! A while ago, you said you wanted to go, but now you say you don't want to--are you really going or aren't you?

The newly changed door lock is unexpectedly not as smooth as the old one.

You are all sweaty and sticky after playing. Quickly go for your shower.

Thirty thousand dollars to get someone to kill him, its easy.

I was merely commenting she's always wearing the same clothes; little did I know that she would use it as an opportunity to buy herself a whole cupboard of new clothes the next day.