Meaning : Move downward.
Example :
The water ran down.
Meaning : Injure or kill by knocking (someone or something) down and passing over the body, as with a vehicle.
Synonyms : run over
Meaning : Examine hastily.
Example :
She scanned the newspaper headlines while waiting for the taxi.
Synonyms : glance over, rake, scan, skim
Meaning : Pursue until captured.
Example :
They ran down the fugitive.
Run down meaning in Bengali (Bangla).