impact

noun

The impact of the collision was devastating.

意味（1）

The striking of one body against another; collision.

意味（2）

The force or energy of a collision of two objects.

The hatchet cut the wood on impact.

意味（3）

(chiefly medicine) A forced impinging.

His spine had an impingement; L4 and L5 made impact, which caused numbness in his leg.

意味（4）

(figuratively, proscribed) A significant or strong influence or effect.

His friend's opinion had an impact on his decision.