Noun

1. A line spoken by an actor to the audience but not intended for others on the stage
2. A message that departs from the main subject

Adverb

1. On or to one side
2. Out of the way (especially away from one's thoughts)
3. Not taken into account or excluded from consideration
4. In a different direction
5. Placed or kept separate and distinct as for a purpose
6. In reserve; not for immediate use