[{"Bold_text": "noun", "List Items": ["a person or thing that chops . chop .", "a short ax with a large blade, used for cutting up meat, fish, etc.; butcher's cleaver.", "a prehistoric implement made by striking flakes off one or both sides of a stone, considered the oldest known worked stone tool.", "choppers,Slang.the teeth.", "Informal.a helicopter.", "Slang.a motorcycle.", "a device for interrupting an electric current or a beam of light at regular intervals."]}, {"Bold_text": "verb (used without object)", "List Items": ["Informal.to travel by helicopter:We choppered into midtown from the airport.to travel by motorcycle.", "to travel by helicopter:We choppered into midtown from the airport.", "to travel by motorcycle."]}]