In some religions, heaven is said to be the place where God lives, where good people go when they die, and where everyone is always happy. It is usually imagined as being high up in the sky.

You can use heaven to refer to a place or situation that you like very much.

The heavens are the sky.

You say 'Heaven forbid!' to emphasize that you very much hope that something will not happen.

You say 'Good heavens!' or 'Heavens!' to express surprise or to emphasize that you agree or disagree with someone.

You say 'Heaven help someone' when you are worried that something bad is going to happen to them, often because you disapprove of what they are doing or the way they are behaving.

You can say 'Heaven knows' to emphasize that you do not know something, or that you find something very surprising.

You can say 'Heaven knows' to emphasize something that you feel or believe very strongly.

If you move heaven and earth to do something, you try as hard as you can to do it.

You can use in heaven's name in questions beginning with 'what', 'when', 'who', 'why' and 'how' to add emphasis in a way that shows that you are very angry or surprised.

If the heavens open, it suddenly starts raining very heavily.