1. (

• treason ,
• high_treason ,
• lese_majesty

) a crime that undermines the offender's government ;

2. (

• treason ,
• subversiveness ,
• traitorousness

) disloyalty by virtue of subversive behavior ;

3. (

• treachery ,
• betrayal ,
• treason ,
• perfidy

) an act of deliberate betrayal ;