turn down an offer
refuse an offer
decline an offer

He had turned down the offer of the same position in 2006.

White said he was asked to be in the movie, but turned down the offer.

He was later reported to have turned down an offer of £55,000.

By that time he had already decided to turn down the offer.

Day turned down the offer because she believed the film was not for her.

"But did you turn down the offer from those people?"

Peter knew he could not turn down such an offer.

What sort of woman would turn down an offer like that?

That is why he turned down their offer of $119 million for seven years.

She turned down offers by others to pay the fine for her.