Definitions
1.nounThe striking of one body against another; collision.
2.nounThe force or energy of a collision of two objects."The hatchet cut the wood on impact."
3.nounA forced impinging."His spine had an impingement; L4 and L5 made impact, which caused numbness in his leg."
4.nounA significant or strong influence; an effect."His friend's opinion had an impact on his decision."
5.verbTo collide or strike, the act of impinging."When the hammer impacts the nail, it bends."
6.verbTo compress; to compact; to press into something or pack together."The footprints of birds do not impact the soil in the way those of dinosaurs do."
7.verbTo influence; to affect; to have an impact on."I can make the changes, but it will impact the schedule."
8.verbTo stamp or impress onto something."Ideas impacted on the mind."