[{"Bold_text": "noun", "List Items": ["an artificial waterway for navigation, irrigation, etc.", "a long narrow arm of the sea penetrating far inland.", "a tubular passage or cavity for food, air, etc., especially in an or plant; a duct.", "channel; watercourse.", "Astronomy.one of the long, narrow, dark lines on the surface of the planet Mars, as seen telescopically from the earth."]}, {"Bold_text": "verb (used with object)", "List Items": ["to make a canal through."]}]