1. (

• digression ,
• aside ,
• excursus ,
• divagation ,
• parenthesis ,

) a message that departs from the main subject ;

2. (

• diversion ,
• deviation ,
• digression ,
• deflection ,
• deflexion ,
• divagation

) a turning aside (of your course or attention or concern); "a diversion from the main highway"; "a digression into irrelevant details"; "a deflection from his goal" ;