to start a fire (by friction)

(archaic, possibly obsolete) a competition of power and skill, similar to modern-day sumo / (archaic, possibly obsolete) Short for 相撲取り (sumaitori): a sumo wrestler

(Buddhism) entering the Buddhist priesthood; also the person who became a Buddhist novice / (by extension) a man with a shaven head / (by extension) a bald-headed monster / a detour

shadowboxing (form of solo exercise, involving throwing punches at the air, and not at an opponent)