Dictionary definition · run down
verb
- trace"We are running down a few tips"
- move downward"The water ran down"
- injure or kill by knocking (someone or something) down and passing over the body, as with a vehicle
- use up all one's strength and energy and stop working"At the end of the march, I pooped out"
- examine hastily"She scanned the newspaper headlines while waiting for the taxi"
- deplete"exhaust one's savings"
- pursue until captured"They ran down the fugitive"
Source: Open English WordNet (CC BY 4.0).