Question and Question mark

Question noun - An interrogative expression often used to test knowledge.

Question mark and question are semantically related in inquiry topic. In some cases you can use "Question mark" instead a noun "Question".

Nearby Words: questionable, questioning, quest, questioned, questioner

Question mark noun - A punctuation mark (?) placed at the end of a sentence to indicate a question.

Question and question mark are semantically related in inquiry topic. You can use "Question" instead a noun phrase "Question mark", if it concerns topics such as mystery.