
Keep somebody waiting
Politeness Expectation
The phrase often implies an apology or acknowledgement of inconvenience caused by the delay.

I'm sorry to keep you waiting so long, the meeting ran over.
Tone Sensitivity
Can imply frustration or annoyance if said by the person waiting, depending on tone and context.

I've been kept waiting for over an hour!
Urgency Indicator
Sometimes used to convey urgency or importance when someone's time is considered valuable.

We can't keep the CEO waiting; let's hurry up.
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