grating

To furnish with grates; to protect with a grating or crossbars

“to grate a window”

To shred (things, usually foodstuffs), by rubbing across a grater

“I need to grate the cheese before the potato is cooked.”

To make an unpleasant rasping sound, often as the result of rubbing against something

“Listening to his teeth grate all day long drives me mad.”

(by extension) to get on one's nerves; to irritate, annoy

“She’s nice enough, but she can begin to grate if there is no-one else to talk to.”

(by extension) to annoy

A barrier that has parallel or crossed bars blocking a passage but admitting air.

A frame of iron bars to hold a fire.

The loose material that comes from something being grated.

“Add a few gratings of nutmeg to the hot milk.”

An optical system of close equidistant and parallel lines or bars, especially lines ruled on a polished surface, used for producing spectra by diffraction.

(in the plural) The strong wooden lattice used to cover a hatch, admitting light and air; also, a movable lattice used for the flooring of boats.

The sound made by something that grates against something else.

(typically of a voice) Harsh and unpleasant.

Abrasive; tending to annoy.