One who violates his allegiance and betrays his country;
   one guilty of treason; one who, in breach of trust, delivers his
   country to an enemy, or yields up any fort or place intrusted to his
   defense, or surrenders an army or body of troops to the enemy, unless
   when vanquished; also, one who takes arms and levies war against his
   country; or one who aids an enemy in conquering his country. See
   Treason.