impact

noun

  1. 1

    influencing strongly

    they resented the impingement of American values on European culture

  2. 2

    the violent interaction of individuals or groups entering into combat

    the armies met in the shock of battle

  3. 3

    the striking of one body against another

  4. 4

    a forceful consequence; a strong effect

    the book had an important impact on my thinking

    the book packs a wallop

verb

  1. 1

    have an effect upon

    Will the new rules affect me?

  2. 2

    press or wedge together; pack together

Synonyms

Also useful for “impact”:Unscrambler