Learn how to say Locker correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word locker:
1a small lockable cupboard or compartment, typically as one of a number placed together for public use, e.g. in schools or railway stations.
a chest or compartment on a ship or boat for clothes, stores, equipment, or ammunition.
2a device that locks something.
late Middle English: probably related to Flemish loker