Noun
1. 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"2. 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"3. part of a statement that is not correct;
"the book was full of errors"