felonyfel·o·ny /ˈfeləni/ noun (plural felonies) [countableC, uncountableU]LAW a serious crime such as murderCitizens had a legal duty to reveal felonies known to them.
He will answer charges of felony.
The U.S. Attorney’s Office indicted the two men on seven felony fraud counts.
→ compare misdemeanour —felonious adjectiveadjProsecuters have charged him with felonious assault for attacking a woman near the square.