Crock/krɑːk/ Definition 1 of 3Pro Tip 1/3Cooking Context Typically used to refer to containers used in cooking and storing food. She stores her homemade pickles in a large crock. Pro Tip 2/3Material Specific A crock is usually made of earthen materials, not metal or plastic. They served the stew from a heavy earthen crock. Pro Tip 3/3Antique Appeal Antique crocks may be collectibles and appear rustic or country-style. The vintage crock on the mantlepiece is from the 19th century.