一円 いちえん Meanings Noun one yen Suffix, Adverb throughout (an area); whole district Kanji 一 one. Read as イチ. 円 circle. Read as エン. Words containing 一円 一円札 (いちえんさつ) one-yen bill 関東一円 (かんとういちえん) whole district of Kanto 一円を笑う者は一円に泣く (いちえんをわらうものはいちえんになく) take care of the penny Jinuma: Japanese Dictionary · Word lists