1
as in collision
a forceful coming together of two things
the glass shattered immediately upon impact with the floor
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2
as in effect
the power to bring about a result on another
the execution had such a powerful impact on her that she became a crusader for the abolition of capital punishment
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3
as in effectiveness
the quality of an utterance that provokes interest and produces an effect
the story has real dramatic impact
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1
as in to influence
to act upon (a person or a person's feelings) so as to cause a response
the tragic loss of his father impacted the boy for the rest of his life
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2
as in to bump
to come into usually forceful contact with something
the damage sustained when a car going 40 miles an hour impacts with a brick wall
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3
as in to root
to set solidly in or as if in surrounding matter
the bullet was found impacted in the police officer's protective vest
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Merriam-Webster unabridged
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