[{"Bold_text": "noun", "List Items": ["a building for storing hay, grain, etc., and often for housing livestock.", "a very large garage for buses, trucks, etc.; carbarn ."]}, {"Bold_text": "verb (used with object)", "List Items": ["to store (hay, grain, etc.) in a barn."]}, {"Bold_text": "noun", "List Items": ["a unit of nuclear cross section, equal to 10?24square centimeter.:b"]}]