いん 因 LinksSentence search for 因Sentence search for いんKanji details for 因Edit in JMdict Noun1. cause; factorNoun2. hetu (direct cause, esp. as opposed to indirect conditions)Buddhism, See also 縁 えんNoun3. the basis of one's argument (in hetuvidya)See also 因明 Discussions Log in to talk about this word.