iroha poem
A famous Japanese poem that uses each kana once, often used as an ordering system or for calligraphy practice.
The iroha poem begins with 'iro wa nioedo'.
Standard kanji spelling for the iroha poem.
Ateji spelling using kanji for their phonetic values; rarely used.
The name comes from the first three kana of the poem: い (i), ろ (ro), は (ha). The poem itself is traditionally attributed to Kūkai, but its exact origin is uncertain.