[{"Bold_text": "adjective", "List Items": ["situated or traveling in a direction extending across a town city:a crosstown street; a crosstown bus."]}, {"Bold_text": "adverb", "List Items": ["in a direction extending across a town city:The car sped crosstown."]}, {"Bold_text": "noun", "List Items": ["Informal.a bus running primarily in a crosstown direction."]}]