disapproval If you call someone a traitor, you mean that they have betrayed beliefs that they used to hold, or that their friends hold, by their words or actions. Some say he's a traitor to the working class
One who violates his allegiance and betrays his/her 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
If someone is a traitor, they betray their country or a group of which they are a member by helping its enemies, especially during time of war. rumours that there were traitors among us who were sending messages to the enemy. someone who is not loyal to their country, friends, or beliefs traitor to (traitre, from traditor, from tradere , from trans- ( TRANS-) + dare )
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