Yes, kill is a Scrabble word!

Verb

1. Cause to die; put to death, usually intentionally or knowingly

2. Thwart the passage of

3. End or extinguish by forceful means

4. Be fatal

5. Be the source of great pain for

6. Overwhelm with hilarity, pleasure, or admiration

7. Hit with so much force as to make a return impossible, in racket games

8. Hit with great force

9. Deprive of life

10. Cause the death of, without intention

11. Drink down entirely

12. Mark for deletion, rub off, or erase

13. Tire out completely

14. Cause to cease operating

15. Destroy a vitally essential quality of or in

Noun

1. The act of terminating a life

2. The destruction of an enemy plane or ship or tank or missile