[{"Bold_text": "verb (used without object)", "List Items": ["(of a rifle or gun or of a bullet or shell) to fail to fire explode.", "(of an internal-combustion engine) to fail to ignite properly or when expected.", "to fail to achieve the desired result, effect, etc.:His criticisms completely misfired."]}, {"Bold_text": "noun", "List Items": ["an act or instance of misfiring."]}]