used
adjective(used)
(of persons) taken advantage of
Examples:
After going out of his way to help his friend get the job he felt not appreciated but used.
used
adjective(used)
previously used or owned by another
Examples:
Bought a secondhand (or used) car.
used
adjective(used)
employed in accomplishing something
Examples:
The principle of surprise is the most used and misused of all the principles of war.