Yes, minor is a Scrabble word!

Adjective

1. Of lesser importance or stature or rank

2. Lesser in scope or effect

3. Inferior in number or size or amount

4. Of a scale or mode

5. Not of legal age

6. Of lesser seriousness or danger

7. Of your secondary field of academic concentration or specialization

8. Of the younger of two boys with the same family name

9. Warranting only temporal punishment

10. Limited in size or scope

Noun

1. A young person of either sex