A locker is a small closet or cabinet with a lock where you can keep your jacket and other possessions for a while. High school students typically have lockers for storing their books (and their smelly gym socks).

You might use a locker at school, when you're visiting a museum and need a place to leave your backpack, or at the gym. In fact, most gyms and swimming pools have "locker rooms," where you can change into your workout clothes and store your regular clothes and shoes, as well as your wallet, phone, and keys, in a locker. Locker has been used since the 14th century — and even earlier, although it originally meant "a lock."

Definitions of locker

n a storage compartment for clothes and valuables; usually it has a lock

cabinet, storage locker
glory hole, lazaretto
a small locker at the stern of a boat or between decks of a ship
Type of:
a partitioned section, chamber, or separate room within a larger enclosed area

n a trunk for storing personal possessions; usually kept at the foot of a bed (as in a barracks)

Type of:
luggage consisting of a large strong case used when traveling or for storage

n a fastener that locks or closes

Type of:
fastener, fastening, fixing, holdfast
restraint that attaches to something or holds something in place

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