Out of the blue
English vocabulary and translations (See all)
(to call someone) out of the blue: (to call someone) unexpectedly, without warning
- "I apologize for calling like this, out of the blue."
- "to come out of the blue/out of a clear blue sky (this is my favourite today: sky AND blue!"
- "knock on your door out of the blue saying that they notice that your roof / driveway / windows / walls need urgent work."
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