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im·pact

impact

 
 
pronunciation:
Im paekt
part of speech: noun
definition 1: the coming together of objects with great force; crash; collision.
The impact of the bus hitting the tree was strong enough to crack the windshield.
 
synonyms:
collision
similar words:
bump, clash, contact, crash, percussion, shock, thump
definition 2: a strong and powerful effect.
The senator's speech on gun control had a great impact on voters.
synonyms:
effect, influence
similar words:
bearing, consequence, impression, result