impact

/ˈɪmpækt/ noun A2

The striking of one body against another; collision. (countable, uncountable)
The force or energy of a collision of two objects. (countable, uncountable) · The hatchet cut the wood on impact.
A forced impinging. (countable, uncountable) · His spine had an impingement; L4 and L5 made impact, which caused numbness in his leg.
A significant or strong influence or effect. (countable, figuratively, uncountable) · His friend's opinion had an impact on his decision.· Our choice of concrete will have a tremendous impact on the building's mechanical performance.

Plural impacts

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From the library

However, scientific research proves that this daily racket has a serious impact on our well-being.

Too Loud to Think, p. 1 · B2

The immediate impact on American travel and daily trade was truly revolutionary.

The Railroad Across America, p. 1 · B2

Other matches

impact To collide or strike, the act of impinging. C1

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