Refers to a destructive fire, especially one affecting buildings or large areas. More formal and news-oriented than 火事.
A large-scale fire broke out at the factory last night.
火災報知器が鳴ったので、すぐに避難した。
The fire alarm went off, so we evacuated immediately.
A fire broke out at the factory late at night.
This building is specially designed to prevent fires.
They were caught in a fire while traveling.
fire prevention
fire insurance