かいけついとぐち 解決の糸口 LinksSentence search for 解決の糸口Sentence search for かいけつのいとぐちKanji details for 解, 決, 糸 and 口Edit in JMdict Expressions (phrases, clauses, etc.), Noun1. key to a solution; first step toward a solution; thread to unravel a mystery Discussions Log in to talk about this word.