渡し船: ferry, ferryboat

武芸: martial arts

成文: (obsolete) starting from the Heian period, an epithet for a person who was assigned to the desired public office, as indicated on their application for office

quadrangular pyramid

(Buddhism) the four stages of existence: 生有(しょうう) (shōu, “moment of birth”), 本有(ほんぬ) (honnu, “life”), 死有(しう) (shiu, “moment of death”), and 中有(ちゅうう) (chūu, “state between death and the next reincarnation”)

(game of Go) ladder

four sixes; twenty-four

four people

four months (duration)

Synonym of 四季 (shiki, “four seasons”) / four (o'clock)