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impact on

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impact (up)on someone or something

[for something] to have an effect on someone or something. (Upon is formal and less commonly used than on.) This plant closing will impact upon the local economy for years to come. The day's troubles impacted on Rachel quite seriously.

See also: impact, on

impact on

v.

To have an effect on someone or something: The results of the election will impact on upcoming legislation.

See also: impact, on