impact, collision, shock, concussion mean a forceful, even violent contact between two or more things. impact may be used to imply contact between two things, at least one of which is impelled toward the …

IMPACT definition: 1. the force or action of one object hitting another: 2. a powerful effect that something…. Learn more.

IMPACT meaning: 1 : the act or force of one thing hitting another; 2 : a powerful or major influence or effect often + on

impact n 1. the act of one body, object, etc, striking another; collision 2. the force with which one thing hits another or with which two objects collide

The noun impact can refer to a physical force (like a collision), an influence (a bad role model or a hero), or a strong effect (a foot of snow will have an impact on driving conditions).

Nov 27, 2025 · impact (countable and uncountable, plural impacts) The striking of one body against another; collision. The force or energy of a collision of two objects.

to have impact or make contact forcefully: The ball impacted against the bat with a loud noise. to have an impact or effect: Increased demand will impact on sales.