Bon (b??n) n1. (Buddhism) Also called: Feast of Lanterns or Festival of Lanterns an annual festival celebrated by Japanese Buddhists2. (Hinduism) a. the pre-Buddhist priests of Tibet or one such priestb. their religion[from Japanese bon, originally Urabon, from Sanskrit ullambana hanging upside down]Bon (b?n) n (Placename) Cape Bon a peninsula of NE TunisiaCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014