[{"Bold_text": "noun", "List Items": ["a person who finds or makes a path ,way, route, etc., especially through a previously unexplored or untraveled wilderness.", "an airplane, or a person dropped from a plane, sent into a target area to illuminate the area for succeeding aircraft.", "a radar beacon beamed into a target area to provide guidance for missiles seeking the target.", "(initial capital letter)an unmanned spacecraft that landed on Mars on July 4, 1997, to obtain climatic and geologic data."]}]