Yes, blast is a Scrabble word!

Verb

1. Make a strident sound

2. Hit hard

3. Use explosives on

4. Apply a draft or strong wind to to

5. Create by using explosives

6. Make with or as if with an explosion

7. Fire a shot

8. Criticize harshly or violently

9. Shatter as if by explosion

10. Shrivel or wither or mature imperfectly

Noun

1. A very long fly ball

2. A sudden very loud noise

3. A strong current of air

4. An explosion (as of dynamite)

5. A highly pleasurable or exciting experience

6. Intense adverse criticism