Real Dictionary

used adjective uses
A used car has already had one or more owners.
A used object is dirty or spoiled because it has been used, and usually needs to be thrown away or washed.

used in American English
that has been used
use
adjective: previously used or owned; secondhand

used in British English
adjective: bought or sold second-hand

used modal uses and phrases
phrase: If something used to be done or used to be the case, it was done regularly in the past or was the case in the past.