[{"Bold_text": "noun", "List Items": ["a hooked prolongation that develops during the spawning season on the lower jaw of a male salmon or trout.", "Machinery.a thin, wedgelike strip of metal for controlling the area in which a moving part, as the table of a milling machine, slides.a keylike part having a head at each end, used with a matching cotter as a fastening.", "a thin, wedgelike strip of metal for controlling the area in which a moving part, as the table of a milling machine, slides.", "a keylike part having a head at each end, used with a matching cotter as a fastening.", "(in carpentry or ironwork) a heavy metal strap for fastening two members together."]}, {"Bold_text": "verb (used with object)", "List Items": ["to fasten (parts) together by means of a gib."]}, {"Bold_text": "noun", "List Items": ["a cat, especially a male cat.", "a castrated cat."]}, {"Bold_text": "abbreviation for", "List Items": ["Gibraltar."]}]