In law, treason is the crime that covers some of the more extreme acts against one's nation or sovereign. Historically, treason also covered the murder of specific social superiors, such as the murder of a husband by his wife or that of a master by his servant. Treason against the king was known as high treason and treason against a lesser superior was petty treason. A person who commits treason is known in law as a traitor. Oran's Dictionary of the Law (1983) defines treason as a "citizen's actions to help a foreign government overthrow, make war against, or seriously injure the [parent nation]". In many nations, it is also often considered treason to attempt or conspire to overthrow the government, even if no foreign country is aiding or involved by such an endeavor.
At times, the term "traitor" has been used as a political epithet, regardless of any verifiable treasonable action. In a civil war or insurrection, the winners may deem the losers to be traitors. Likewise the term "traitor" is used in heated political discussion – typically as a slur against political dissidents, or against officials in power who are perceived as failing to act in the best interest of their constituents. In certain cases, as with the Dolchstoßlegende (Stab-in-the-back myth), the accusation of treason towards a large group of people can be a unifying political message. Treason is considered to be different and on many occasions a separate charge from "treasonable felony" in many parts of the world.
In English law, high treason was punishable by being hanged, drawn and quartered (men) or burnt at the stake (women), although beheading could be substituted by royal command (usually for royalty and nobility). Those penalties were abolished in 1814, 1790 and 1973 respectively. The penalty was used by later monarchs against people who could reasonably be called traitors, although most modern jurists would call it excessive. Many of them would now just be considered dissidents.