4 Letter Words

I was just thinking about four letter words and how we usually associate them with something naughty or bad. I found that these words usually had another four letter word that meant the opposite. Here is what I came up with. Can you think of any more?

Hate - Love
Take - Give
Work - Play
Hide - Seek
Shut - Open
Ugly - Cute
Fake - Real
Wont - Will
Push - Pull
Less - More