Locked storage compartments, usually found in schools, gyms, or similar places where people can securely store personal belongings.
From 'lock' plus the agent suffix '-er'; the term became common in the late 1800s as schools and gyms developed secure storage for students and users.
School lockers have been a rite of passage since the 1800s—they're one of the first places kids learn to manage their own security and privacy, which is why forgetting your combination feels like a mini crisis!
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