とし いい年 LinksSentence search for いい年Sentence search for いいとしSentence search for いい歳Sentence search for 好い年Kanji details for 年Edit in JMdict Expressions (phrases, clauses, etc.), Noun1. mature age; advanced age; maturityExpressions (phrases, clauses, etc.), Noun2. age when one is old enough to know betterSee also いい年をしてOther formsいい歳 【いいとし】、好い年 【いいとし】 Discussions Log in to talk about this word.