scrape

A broad, shallow injury left by scraping (rather than a cut or a scratch).

"He fell on the sidewalk and got a scrape on his knee."

A fight, especially a fistfight without weapons.

"He got in a scrape with the school bully."

An awkward set of circumstances.

"I'm in a bit of a scrape — I've no money to buy my wife a birthday present."

To draw (an object, especially a sharp or angular one), along (something) while exerting pressure.

"Her fingernails scraped across the blackboard."

To remove (something) by drawing an object along in this manner.

"Scrape the chewing gum off with a knife."

To injure or damage by rubbing across a surface.

"She tripped on a rock and scraped her knee."