a storage compartment for clothes and valuables; usually it has a lock
"After changing out of his wet swimsuit, he placed his towel and keys inside the locker before walking onto the beach."
a fastener that locks or closes
"The old wooden drawer had a rusty locker that refused to stay closed."
a trunk for storing personal possessions; usually kept at the foot of a bed (as in a barracks)
"The recruits were instructed to keep their uniforms and toiletries inside the small wooden locker at the foot of their bunk."
A type of storage compartment with a lock, usually used to store clothing, equipment, or books.
"The students each have a locker in the gym where they keep their sports gear."
In plain English: A locker is a small, lockable storage space usually found at schools for keeping your belongings safe while you are there.
"The students lined up to open their lockers before class began."
Usage: A locker is typically found in schools and gyms where it stores personal items like clothes or sports gear behind an individual's assigned door. Do not confuse the physical container itself with "lock," which refers only to the mechanism securing the compartment.
A surname.
"My neighbor, Mr. Locker, is a former football player who now runs a local gym."
The word locker comes from the verb to lock combined with a suffix meaning "one who does" or "a place for." It entered English as a term for a secure storage space that can be locked shut.