[{"Bold_text": "noun", "List Items": ["a strenuously acrobatic dance consisting of a few standardized steps augmented by twirls, splits, somersaults, etc., popular especially in the early 1940s and performed chiefly to boogie-woogie and swing.", "a person who dances the jitterbug."]}, {"Bold_text": "verb (used without object)", "List Items": ["to dance the jitterbug."]}]