After a night of heavy rain and freezing temperatures, the streets and roads always turn ...... . You need to watch your step so that you don't fall down.

A: What was it that you've just said?
B: I'm sorry, it was just a ...... of the tongue.

The CEO will have no problem allowing some ...... as long as the deadline is met.

John is a very intelligent and clever young man. Unfortunately, you can describe him as ...... as well as he's quite dishonest too.

I heard some very disturbing news about road ...... the other day, so I took the bus instead of going by car.