definition of
fault

[1] #1 fault n. [mistake, error] 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". wn

[2] #2 fault n. [defect, flaw] an imperfection in an object or machine; "a flaw caused the crystal to shatter"; "if there are any defects you should send it back to the manufacturer". wn

[3] #3 fault v. [blame] put or pin the blame on. wn

[4] #4 fault n. [demerit] the quality of being inadequate or falling short of perfection; "they discussed the merits and demerits of her novel"; "he knew his own faults much better than she did". wn

[5] #5 fault n. [faulting, geological fault, shift, fracture, break] (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". wn