ニニ○Freq.FrequencyTop 5,000じ字FuriganaAudioMeanings1nounfourth (in iroha order); d; ivUsed in the traditional iroha ordering system to denote the fourth item, equivalent to 'd' or 'iv' in Western sequences.See also: いろは順いろは順じゅんで「ニ」は四よ番ばん目めにあたる。Break this sentence down in the analyzerIn the iroha order, 'ニ' corresponds to the fourth position.2nounD (musical note)music›Used mainly in key names and chord notation in a Japanese musical context; equivalent to the note D.この曲きょくのキーはニ長ちょう調ちょうです。Break this sentence down in the analyzerThe key of this piece is D major.