The term "question mark" refers to the punctuation symbol commonly used to indicate a question in written English. However, there are other words that can be used to describe this symbol such as interrogation point, query sign, inquiry mark, and problem symbol. The term confusion mark is also sometimes used colloquially to describe the symbol, particularly when it represents uncertainty or confusion. In other languages, synonyms for the question mark include the Spanish "signo de interrogación," the French "point d'interrogation," and the German "Fragezeichen." Regardless of the term used, the question mark remains a vital tool in written communication to convey inquiries and solicit responses.