Meanings

Four Perils (malevolent beings)

the four auspicious beasts from Chinese mythology

fourth of nine traditional astrological signs (corresponding to Jupiter and south-east)

the Big Dipper (asterism)

Twenty-Four Histories

the four northern islands (held by Russia)

four realms (in Tendai Buddhism or Yogacara)

tetramer

four-eyed fish (Anableps spp.)

matched set of four arrows for target shooting

tetralogy

the four great civilizations of the world (China, Babylon, India, and Egypt; as put forward by Chinese scholar Liang Qichao in 1900)

weather of the four seasons (warmth of spring, heat of summer, cool of autumn, and cold of winter)

passage of the seasons

plans for one's day, plans for one's year, plans for one's life, and plans for one's family

nishimuku samurai (mnemonic for remembering the months with fewer than 31 days)

heaven of the Four Great Kings

the four kinds of demons that make trouble for sentient beings

the four drug-control laws of Japan

28th day after death