いい線を行く いいせんをいく Also written よいせんをいく, 良い線を行く, 好い線を行く Meanings Expression, Godan verb to be on the right track; to go well See also: いい線いく (いいせんいく). Kanji 線 line. Read as セン. 行 go. Read as いく. Jinuma: Japanese Dictionary · Word lists