Yes, discharge is a Scrabble word!

Verb

1. Complete or carry out

2. Pour forth or release

3. Free from obligations or duties

4. Remove the charge from

5. Go off or discharge

6. Pronounce not guilty of criminal charges

7. Eliminate (a substance)

8. Leave or unload

9. Cause to go off

10. Release from military service

11. Become empty or void of its content

Noun

1. The sudden giving off of energy

2. The act of venting

3. A substance that is emitted or released

4. Any of several bodily processes by which substances go out of the body

5. Electrical conduction through a gas in an applied electric field

6. The pouring forth of a fluid

7. The termination of someone's employment (leaving them free to depart)

8. A formal written statement of relinquishment

9. The act of discharging a gun