The word "grate" can be used as both a noun and a verb, and it has different meanings depending on the context. Let’s break it down in a simple way:
Grate (a barrier): A grate is a structure made of bars that are placed parallel to each other or crossed. It can block something, like a passage, but still allows air to pass through. For example, you might see a grate on the floor in a building to let air circulate.
Grate (sound): It can also refer to a harsh, rasping sound made by scraping something. For example, if you scrape your nails on a chalkboard, it makes a grating sound.
To scratch repeatedly: When something scratches against another surface, you can say it "grates". For example, if a cat scratches a chair, you can say, "The cat grates the armchair."
To make a grinding sound: If two hard surfaces rub together and create a harsh sound, like metal on metal, it grates.
To reduce to small shreds: You can grate food, like cheese or vegetables, by rubbing them against a rough surface. This makes them into smaller pieces.
To make someone feel angry or resentful: If something bothers someone and makes them feel upset, you can say it "grates on" them.
Furnish with a grate: This means to put a grate in a specific place, such as in a fireplace.
Grate one's teeth: This phrase means to clench your teeth together tightly, often because of anger.
Grated (adjective): Referring to something that has been reduced to small pieces by grating.
Grating (noun/adjective): Referring to the action of grating or the sound made by something that grates.
Grate on someone: To annoy or irritate someone.
So, "grate" is a versatile word that can refer to a physical structure, a sound, or actions you take with objects or feelings.