The crossword solution for the term 'Cause of Misunderstanding' is ACCENT, which is a six-letter word. ACCENT refers to the way a person speaks, which can be affected by their native language, dialect, and regional variations. This can lead to misunderstandings between people who speak different languages or dialects, as words may have different meanings or connotations depending on the ACCENT. Therefore, ACCENT can be seen as a cause of misunderstanding.