1. A large, intense fire that creates and is sustained by its own wind system, often caused by bombing or other disaster.
Usage: Originally a military/historical term; now used more broadly
2. A sudden, intense public outcry or controversy; a storm of criticism or protest.
Usage: Figurative; common in modern usage

Examples

• The bombing campaign created a firestorm that destroyed much of the city.
• The politician's comments sparked a firestorm on social media.
• The company faced a firestorm of criticism after the product recall.
• A firestorm swept through the forest, consuming everything in its path.
• The scandal ignited a firestorm of debate in the press.
• The decision to close the school triggered a firestorm among parents.