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"
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"
identify incorrectly; "Don't mistake her for her twin sister"
indistinctness of shape or character; "the scene had the swirling vagueness of a painting by Turner"
unclearness by virtue of being poorly expressed or not coherent in meaning; "the Conservative manifesto is a model of vagueness"; "these terms were used with a vagueness that suggested little or no thought about what each might convey"
(sports) a serve that is illegal (e.g., that lands outside the prescribed area); "he served too many double faults"
responsibility for a bad situation or event; "it was John's fault"
(electronics) equipment failure attributable to some defect in a circuit (loose connection or insulation failure or short circuit etc.); "it took much longer to find the fault than to fix it"
(geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other; "they built it right over a geological fault"; "he studied the faulting of the earth's crust"
the quality of being widely admired or accepted or sought after; "his charm soon won him affection and popularity"; "the universal popularity of American movies"