impact

Pronunciation

• (noun) enPR: imʹpăkt, IPA ^(key): /ˈɪmpækt/

• Audio (UK)

  (file)

• (verb) enPR: im-păktʹ, IPA ^(key): /ɪmˈpækt/

• Audio (UK)

  (file)

Noun

Singular impact

Plural impacts

1. (countable) An impact is the act of one object hitting another.

   In tests, the driver was unhurt, even in high-speed impacts.

   Many buildings were destroyed as the plane exploded on impact.

2. (countable & uncountable) The impact is the effect of an act, statement, change, etc.

   The report noted that most teachers feel that IT has made little impact on formal education.

   The environmental impact of such increases in efficiency, however, depends on how you generate the power.

Verb

Plain form impact

Third-person singular impacts

Past tense impacted

Past participle impacted

Present participle impacting

1. If something impacts you, it has an effect on you.

   It is obvious how bad movies will impact on children.

2. If you impact something, you press (or pack) its together.

   There is a special tool to impact the road when it is under construction so the base is solid.