Grooves

Bacteria can hide in grooves in cutting boards.

But if you look close enough into the grooves and onto the lip of the Cup, you will see that players started to scratch and engrave their names into it.

To address wrinkling below eye level, plastic surgeons turn to fillers, including tiny plastic beads, liquid silicone, and collagen from cows and even humans to plump up the grooves in one's skin.

There was a young man who said, "Damn! It is borne upon me that I am but a being that moves in predestinate grooves – I'm not even a bus, I'm a tram."

Vinyl records are covered in grooves.

The millstone's grooves wore down with use.