'Laughter' in the Bible

But God said, “No, Sarah your wife shall bear you a son indeed, and you shall name him Isaac (laughter); and I will establish My covenant with him for an everlasting covenant and with his descendants after him.

Abraham named his son Isaac (laughter), the son to whom Sarah gave birth.

and Sarah saith, 'God hath made laughter for me; every one who is hearing laugheth for me.'