[{"Bold_text": "noun", "List Items": ["any mistake or error.", "something that is a failure; a product of inferior quality.", "a wrong note in a musical performance.", "British.someone or something wonderful or exceedingly well-liked."]}, {"Bold_text": "noun", "List Items": ["a person or thing that clinks ."]}, {"Bold_text": "noun", "List Items": ["a mass of incombustible matter fused together, as in the burning of coal.", "a hard Dutch brick, used especially for paving.", "a partially vitrified mass of brick.", "the scale of oxide formed on iron during forging.", "Geology.a mass of vitrified material ejected from a volcano."]}, {"Bold_text": "verb (used without object)", "List Items": ["to form clinkers in burning."]}]