Grate
Part of speech: noun
Definition: A horizontal metal grille through which water, ash, or small objects can fall, while larger objects cannot.
Part of speech: verb
Definition: To shred things, usually foodstuffs, by rubbing across a grater. To rub against, such as grating one's teeth. To grate on one's nerves; to irritate or annoy.
Scrape
Part of speech: verb
Definition: To draw a sharp or angular object along (something) while exerting pressure.To cause something to be in the state implied by the adverb by scraping.To injure by scraping.To extract data embedded in a screenshot or formatted medium (such as an HTML web page) by means of an automated program.
Part of speech: noun
Definition: A broad, shallow injury left by scraping (rather than a cut or a scratch).A fight; especially a fist fight without weapons.An awkward set of circumstances.A D and C or abortion; or, a miscarriage.A shallow depression used by ground birds as a nest; a nest scrape.
Example sentence: One could drive a prairie schooner through any part of his argument and never scrape against a fact.