bajutsu
horsemanship

bakemonojutsu
ghost arts

bakuhatsugama
kusarigama with container for explosives

bansenshukai
17th century book of the history & techniques of the iga and koga ninja

bisento
heavy bladed spear

bo jutsu
art of fighting with a six foot staff

bo shuriken
straight throwing blades

bo
six foot staff, stick

bokken
wooden practice sword

boku
tree

bokuto
wooden practice sword

boryaku
concepts of battle strategy

boshi ken
thumb drive fist

bu
martial arts

budo
a system of "ways" derivative of the martial arts

budoka
one who studies the martial arts