[{"Bold_text": "noun", "List Items": ["the soft, diffused light the sky when the sun is below the horizon, either from daybreak to sunrise or, more commonly, from sunset to nightfall.", "the period in the morning or, more commonly, in the evening during which this light .", "a terminal period, especially after full development, success, etc.:the twilight of his life.", "a state of uncertainty, vagueness, or gloom."]}, {"Bold_text": "adjective", "List Items": ["of, relating to, or resembling twilight; dim; obscure:in the twilight hours.", "appearing or flying at twilight; crepuscular."]}]