I don't know

idiom

Definition of I don't know

1 used to say that one does not have the information someone is asking for "What time does the library close?" "I don't know."
2 informal used to express disagreement, doubt, or uncertainty "I don't like that guy." "Oh, I don't know, he's not really so bad."She thinks we should go now, but I don't know. Maybe we should wait.

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“I don't know.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/I%20don%27t%20know. Accessed 13 Jun. 2021.

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