A sin which causes the loss of God's grace, leading to eternal damnation, unless the sinner repents, which includes their intent to confess and atone; such a sin is defined as a transgression against one of the Ten Commandments with the full knowledge and deliberate consent of the sinner.
A wrongful act, whether intentional or negligent, regarded as non-criminal and unrelated to a contract, which causes an injury and can be remedied in civil court, usually through the awarding of damages.
Synonym of tart (“sharp- or sour-tasting; (figuratively) keen, severe, sharp”)