1. To or toward the side: step aside.2. Out of one's thoughts or mind: put my doubts aside.3. Apart: a day set aside for relaxing.4. In reserve; away: put a little money aside.5. Set out of the way; dispensed with: All joking aside, can you swim 15 miles?
NOUN:
1. A piece of dialogue intended for the audience and supposedly not heard by the other actors on stage. 2. A remark made in an undertone so as to be inaudible to others nearby. 3. A parenthetical departure; a digression.