impact

1. impact (noun) — sense 1

Definition: The striking of one body against another; collision.

2. impact (noun) — sense 2

Definition: The force or energy of a collision of two objects.

Example: The hatchet cut the wood on impact.

3. impact (noun) — sense 3

Definition: A forced impinging.

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

4. impact (verb) — sense 4

Definition: To collide or strike, the act of impinging.

Example: When the hammer impacts the nail, it bends.

5. impact (verb) — sense 5

Definition: To compress; to compact; to press into something or pack together.

Example: The footprints of birds do not impact the soil in the way those of dinosaurs do.

6. impact (verb) — sense 6

Definition: To significantly or strongly influence or affect; to have an impact on.

Example: I can make the changes, but it will impact the schedule.