▪ I. impact im‧pact 1 [ˈɪmpækt] noun [countable]
the effect or influence that an event, situation etc has on someone or something:
impact on
• High interest rates have a negative impact on spending.
• The new advertising campaign has had little impact on sales.
[m0] ▪ II. impact im‧pact 2 [ɪmˈpækt] verb [intransitive, transitive] especially AmE
to have an important or noticeable effect on someone or something:
• The recession has impacted the domestic business market.
impact on
• How will this program impact on the local community?
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Ⅰ.
impact UK US /ˈɪmpækt/ noun [C, usually singular, or U]
► a 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.
Ⅱ.
impact UK US /ɪmˈpækt/ verb [I or T]
► to 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.
Financial and business terms. 2012.