せん いい線 LinksSentence search for いい線Sentence search for いいせんSentence search for 良い線Sentence search for 好い線Kanji details for 線Edit in JMdict Expressions (phrases, clauses, etc.), Noun1. (on the) right track; (on the) right linesSee also いい線いってる, usu. as いい線(を)いく, いい線(を)いってる, etc.Other forms良い線 【いいせん】、好い線 【いいせん】Notes好い線: Rarely-used kanji form. Discussions Log in to talk about this word.