Accuracy, or exact correspondence to some given quality or fact.
Faithfulness to one's duties.
Loyalty to one's spouse or partner, including abstention from cheating or extramarital affairs.
The degree to which a system accurately reproduces an input.
The state of being negligent.
The breach of a duty of care: the failure to exercise a standard of care that a reasonable person would have in a similar situation.
The tort whereby a duty of reasonable care was breached, causing damage: any conduct short of intentional or reckless action that falls below the legal standard for preventing unreasonable injury.