いととお 糸を通す Show inflections LinksSentence search for 糸を通すSentence search for いとをとおすKanji details for 糸 and 通Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'su' ending1. to thread (e.g. a needle, beads, etc.) Discussions Log in to talk about this word.