Select the most appropriate meaning of the given idiom.

Bolt from the blue

To receive unexpected news

The most appropriate meaning of the idiom "bolt from the blue" is to receive unexpected news.

The other options are incorrect.

• "To get good news" is not the same as a bolt from the blue. Good news can be expected, while a bolt from the blue is unexpected.
• "To win a large sum of money" is not the same as a bolt from the blue. Winning a large sum of money can be expected, while a bolt from the blue is unexpected.
• "To get lucky" is not the same as a bolt from the blue. Getting lucky can be expected, while a bolt from the blue is unexpected.

The idiom "bolt from the blue" comes from the idea of a bolt of lightning coming out of a clear sky. In the same way, a bolt from the blue is unexpected news, like a death in the family or a job loss. For example, you might say that the news of the actor's death came as a bolt from the blue.