impact
noun [ C, usually singular, or U ]
uk/ˈɪmpækt/ usa powerful effect that something, especially something new, has on someone or something:
a big/huge impact Social networks are making a huge impact on sales, with fans recommending brands to hundreds of their friends.
We judge that these developments will have little impact on our business.
have an impact on/upon sb/sth Microenterprises can have a negative or positive impact on the environment.
See also
environmental impact
impact
verb [ I or T ]
uk/ɪmˈpækt/ usto have an influence on something:
Local businesses were heavily impacted by the new zoning regulations.
impact on sth Engineers say the new engine could impact on the way future cars are designed.