Noun

1. The event of something burning (often destructive)
2. The act of firing weapons or artillery at an enemy
3. The process of combustion of inflammable materials producing heat and light and (often) smoke
4. A fireplace in which a relatively small fire is burning
5. Once thought to be one of four elements composing the universe (empedocles)
6. Feelings of great warmth and intensity
7. Fuel that is burning and is used as a means for cooking
8. A severe trial
9. Intense adverse criticism

Verb

1. Start firing a weapon
2. Cause to go off
3. Bake in a kiln so as to harden
4. Terminate the employment of; discharge from an office or position
5. Go off or discharge
6. Drive out or away by or as if by fire
7. Call forth (emotions, feelings, and responses)
8. Destroy by fire
9. Provide with fuel