1. (n.) A high crime (such as murder, rape, or armed robbery) more serious than a misdemeanor\.

2. (n.) An offense which occasions a total forfeiture either lands or goods, or both, at the common law, and to which capital or other punishment may be added, according to the degree of guilt.

3. (n.) A heinous crime; especially, a crime punishable by death or imprisonment.

atrocity breach crime crime against humanity deadly sin delict delinquency dereliction enormity error evil failure fault genocide guilty act heavy sin illegality impropriety indiscretion inexpiable sin iniquity injury injustice lapse malefaction malfeasance malum minor wrong misdeed misdemeanor misfeasance mortal sin nonfeasance offense omission outrage peccadillo peccancy sin sin of commission sin of omission sinful act slip tort transgression trespass trip unutterable sin venial sin violation wrong wrongdoing