Noun

1. A wrong action attributable to bad judgment or ignorance or inattention
2. An imperfection in an object or machine
3. The quality of being inadequate or falling short of perfection
4. (geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other
5. (electronics) equipment failure attributable to some defect in a circuit (loose connection or insulation failure or short circuit etc.)
6. Responsibility for a bad situation or event
7. (sports) a serve that is illegal (e.g., that lands outside the prescribed area)

Verb

1. Put or pin the blame on