[{"Bold_text": "adjective", "List Items": ["smooth or glossy, as hair, an , etc.", "well-fed or well-groomed.", "trim and graceful; finely contoured; streamlined :a sleek sports car.", "smooth in manners, speech, etc.; suave .", "cleverly or deceitfully skillful; slick :a sleek confidence man.Synonyms: slippery , shady , glib , shrewd , artful , smooth , refined , polished"]}, {"Bold_text": "verb (used with object)", "List Items": ["to make sleek; smooth; slick:to sleek leather."]}]