ken, a game played with the hands; a game of hands; in Italian, mor(r)a, a game in which two (or more) players each suddenly display a hand showing zero to five fingers and call out what they think will be the sum of all fingers shown.

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”)

(martial arts) used in the names of styles, or moves that involve punching

(idiomatic) practice makes perfect

(martial arts) karate

karate practitioner

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all