Definitions

1. noun

a small chip or crack in something, especially a surface

“The vase had a big knick in the side that made it useless.”

2. verb

to chip or crack something, especially the surface

“The rock was knicked by the wind, leaving a small fracture.”

3. verb

to acquire or collect something, especially coins or stamps

“He started knicking coins when he was a kid and now has a large collection.”