Simple Examples:
* The meteor annihilated the ancient city, leaving only dust behind.
* The army's superior firepower annihilated the enemy's forces.
Figurative/Metaphorical Examples:
* The stress of the job annihilated her free time.
* The news of the accident annihilated all hope of a happy ending.
Formal/Scientific Examples:
* In particle physics, matter and antimatter annihilate each other, releasing energy.
* The virus annihilates the host cell's DNA, preventing it from replicating.
Remember: "Annihilate" is a powerful word that suggests complete destruction. Use it carefully and thoughtfully.