impact

impact is part of the Academic Word List. It is important for students in college and university.

Noun

Singular impact

Plural impacts

1. (countable) Primary meaning: 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) By extension or metaphor: 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

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