a large open-air fire used for burning rubbish or as part of a celebration 篝火,营火;(为销毁垃圾而燃的)火堆
语源
late Middle English : from bone + fire. The term originally denoted a large open-air fire on which bones were burnt (sometimes as part of a celebration), also one for burning heretics or proscribed literature. Dr Johnson accepted the mistaken idea that the word came from French bon 'good'