There is an old boiler in this house.

Firefox is my favorite web browser.

He found an ancient fire clock.

The legend of the fire god is deeply rooted in ancient mythology.

The phoenix, also known as the fire bird, is said to burn itself out and regenerate from the ashes according to legend.

He threw a fireball using magic.

His house suddenly caught fire.

St. Elmo's fire is a phenomenon of electrical discharge that appears on things like ship masts and airplane wings.

He used the ember to start a new fire.

We lit a bonfire of dried reeds by the lake and gazed at the starry sky.