いっせん 1000 Common word Wanikani level 2 LinksSentence search for 1000Sentence search for いっせんSentence search for 一千Sentence search for 1千Sentence search for 一〇〇〇Edit in JMdict Numeric1. 1,000; one thousandOther forms一千 【いっせん】、1千 【いっせん】、一〇〇〇 【いっせん】 Discussions Log in to talk about this word.