Yes, aside is a Scrabble word!

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

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