impact

impact — noun

1. The force produced when two objects hit each other, especially when this causes

1.名詞B2
釋義

The force produced when two objects hit each other, especially when this causes damage or a violent reaction.

例句

The airbags inflated on impact, saving the driver from serious injury.

collocation: on impact (at the moment of collision)

Samir checked the car door for signs of impact after the hailstorm.

同義詞
  • collision

    focuses on the event of two objects hitting, not the resulting force

  • crash

    less formal; often used for vehicles or loud breaking sounds

  • blow

    focuses on a single forceful strike, often to a body or surface

文法句型

on impact

the impact of [noun]

用法筆記

Often used in the fixed phrase 'on impact' to describe what happens at the exact moment of collision.

常見錯誤

❌The impact of the car and the wall was loud.
✅The impact of the car against the wall was loud.
💡Use 'against' or 'with' rather than 'and' to describe two objects colliding.

2. A noticeable change produced in a situation, person, or thing by a new developme

2.名詞B1
釋義

A noticeable change produced in a situation, person, or thing by a new development, event, or person.

例句

The new policy had a major impact on local businesses across the region.

collocation: have a(n) [adj.] impact on [noun]

Maeve's speech about climate change made a lasting impact on everyone present.

collocation: make a(n) [adj.] impact

同義詞
  • effect

    the most neutral term; less forceful than impact

  • influence

    suggests gradual or indirect shaping over time

  • consequence

    emphasises a result that follows logically, often negative

文法句型

have an impact on [noun]

make an impact

用法筆記

Commonly modified by adjectives such as 'significant', 'major', 'profound', 'lasting', 'positive', 'negative'. The preposition 'on' (or 'upon') introduces what is affected.

常見錯誤

❌The news had an impact in my decision.
✅The news had an impact on my decision.
💡Use 'on', not 'in' or 'to'.

impact — verb