Used to grant that a question is apt or insightful and worth taking up, often as a lead-in before answering or working it through, even when the speaker does know.; used to show that you do not know the answer to a question
Editorial75% of films
Used to grant that a question is apt or insightful and worth taking up, often as a lead-in before answering or working it through, even when the speaker does know.
Oxford25% of films
used to show that you do not know the answer to a question
Definitions from the Oxford Advanced Learner's Dictionary, 9th edition