1. [noun] An error; a blunder.
2. [noun] (baseball) A pitch which was intended to be pitched in a hard to hit location, but instead ends up in an easy to hit place
3. [verb] (transitive) To understand wrongly, taking one thing for another, or someone for someone else.
4. [verb] (intransitive) To commit an unintentional error; to do or think something wrong.
5. [verb] (obsolete) (rare) To take or choose wrongly.
6. [noun] A wrong action attributable to bad judgment or ignorance or inattention; 'he made a bad mistake'; 'she was quick to point out my errors'; 'I could understand his English in spite of his grammatical faults'.
7. [noun] An understanding of something that is not correct; 'he wasn't going to admit his mistake'; 'make no mistake about his intentions'; 'there must be some misunderstanding--I don't have a sister'.
8. [noun] Part of a statement that is not correct; 'the book was full of errors'.
9. [verb] Identify incorrectly; 'Don't mistake her for her twin sister'.
10. [verb] To make a mistake or be incorrect.