六義
1
six forms of the Shi Jing (genre: folk song, festal song, hymn; style: narrative, explicit comparison, implicit comparison)
2
six forms of waka (allegorical, enumerative, metaphorical, allusive, plain, congratulatory)
3
six principles of calligraphy
4
six classes of kanji characters
See also:
六書 (りくしょ)