いっかん 一環 Common word LinksSentence search for 一環Sentence search for いっかんKanji details for 一 and 環Edit in JMdict Noun1. link (e.g. in a chain of events); part (of a plan, campaign, activities, etc.)Noun which may take the genitive case particle 'no'2. monocyclicBotany Discussions Log in to talk about this word.