[{"Bold_text": "noun", "List Items": ["a gear tooth, formerly especially one of hardwood or metal, fitted into a slot in a gearwheel of less durable material.", "a cogwheel .", "a person who plays a minor part in a large organization, activity, etc.:He's just a small cog in the financial department."]}, {"Bold_text": "verb (used without object)", "List Items": ["(of an electric motor) to move jerkily."]}, {"Bold_text": "verb (used with object)", "List Items": ["to roll or hammer (an ingot) into a bloom or slab."]}, {"Bold_text": "verb (used with object)", "List Items": ["to manipulate or load (dice) unfairly."]}, {"Bold_text": "verb (used without object)", "List Items": ["to cheat, especially at dice."]}, {"Bold_text": "noun", "List Items": ["Carpentry.(in a cogged joint) the tongue in one timber, fitting into a corresponding slot in another.", "Mining.a cluster of timber supports for a roof.Compare chock(def4) chock(def4)."]}, {"Bold_text": "verb (used with or without object)", "List Items": ["Carpentry.to join with a cog."]}, {"Bold_text": "abbreviation for", "List Items": ["cognate."]}]