Yes, away is a Scrabble word!

Adverb

1. From a particular thing or place or position (`forth' is obsolete)

2. From one's possession

3. Out of the way (especially away from one's thoughts)

4. Out of existence

5. At a distance in space or time

6. Indicating continuing action; continuously or steadily

7. So as to be removed or gotten rid of

8. Freely or at will

9. In or into a proper place (especially for storage or safekeeping)

10. In a different direction

11. In reserve; not for immediate use

Adjective

1. Not present; having left

2. Used of an opponent's ground

3. (of a baseball pitch) on the far side of home plate from the batter