Yes, heroic is a Scrabble word!

Adjective

1. Very imposing or impressive; surpassing the ordinary (especially in size or scale)

2. Relating to or characteristic of heroes of antiquity

3. Having or displaying qualities appropriate for heroes

4. Of behavior that is impressive and ambitious in scale or scope

5. Showing extreme courage; especially of actions courageously undertaken in desperation as a last resort

Noun

1. A verse form suited to the treatment of heroic or elevated themes; dactylic hexameter or iambic pentameter