
At/in one fell swoop
Dramatic Effect
The phrase often adds drama, emphasizing the speed and completeness of an action.

The magician made the birds vanish at one fell swoop.
Negative Connotation
Can imply something negative, like a sudden disaster or loss.

The company's assets were seized at one fell swoop by the authorities.
Historical Origin
Originated from Shakespeare's Macbeth; often used in literary or historical contexts.

In her lecture, she quoted Macbeth, referring to life's fleeting moments 'at one fell swoop.'
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