一つ返事 ひとつへんじ Meanings Noun ready reply; quick answer (common mistake for 二つ返事) See also: 二つ返事 (ふたつへんじ). Kanji 一 one. Read as ひとつ. 返 give back. Read as ヘン. 事 matter. Read as ジ. Jinuma: Japanese Dictionary · Word lists