What is the meaning of 拳?

fist

the shape of the hand when gripping a sword hilt

swordsmanship, ability with a sword

the shape of the hand when gripping a bow

bowmanship, ability with a bow

huntsmanship, hunting ability

alternative spelling of 辛夷 (kobushi, “Kobushi magnolia, Magnolia kobus”)

a fist

any of the martial arts that use the fists for striking, such as 空手 (karate)

any of several finger-shape games, including じゃんけんぽん (jankenpon, “rock paper scissors”)

used in the names of styles, or moves that involve punching

Source: wiktionary.org