|Origin:||, past participle of impingere; IMPINGE|
the effect or influence that an event, situation etc has on someone or something ! Do not say 'cause an impact' on something. Say have an impact on something.
We need to assess the impact on climate change.
Higher mortgage rates have already had a major impact on spending.
2 [uncountable and countable]
the force of one object hitting another:
The force of the impact knocked the breath out of her.
at the moment when one thing hits another:
The plane's wing was damaged on impact.