n. a large open-air fire for burning rubbish, as part of a celebration, or as a signal.
Phrases and idioms:
Bonfire Night Brit.
5 Nov., on which fireworks are displayed and an effigy of Guy Fawkes burnt (see GUY(1)). make a bonfire of destroy by burning.
Etymology: earlier bonefire f. BONE (bones being the chief material formerly used) + FIRE