A question tag is a phrase that is added to the end of a statement, transforming it into a question. Some other synonyms for the term "question tag" include tag question, tail question, interrogative tag, question tail, and tag ending. These phrases serve to confirm or seek agreement on certain statements made in conversations. They can also be used to indicate the speaker's tone, attitude, and expectations towards what has been said. The use of question tags can vary depending on different cultures and contexts. Nonetheless, their common purpose is to engage in a dialogue while seeking affirmation, clarification, or additional information.