二十一代集 にじゅういちだいしゅう Meanings Noun Collections of the Twenty-One Eras (i.e.: twenty-one collections of waka compiled by imperial command (early Heian to early Muromachi)) See also: 勅撰和歌集 (ちょくせんわかしゅう). Kanji 二 two. Read as ニ. 十 ten. Read as ジュウ. 一 one. Read as イチ. 代 era. Read as ダイ. 集 gather. Read as シュウ. Jinuma: Japanese Dictionary · Word lists