Main entry: misapprehension, mistake, misunderstanding
Definition: an understanding of something that is not correct
Usage: 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
Main entry: misinterpretation, mistaking, misunderstanding
Definition: putting the wrong interpretation on
Usage: his misinterpretation of the question caused his error; there was no mistaking her meaning