A small, controlled fire set in the path of a larger uncontrolled fire, in order to limit the spread of the large fire by removing its fuel.

A fireproof door designed to stop fires spreading through buildings. / The door of a furnace offering access to the fire inside.

An uncovered fire.

(idiomatic) To begin firing (weapons) at something or someone.

Alternative form of firestorm

(historical) A wooden ship set alight and then sent floating into an enemy flotilla, with the aim of spreading the fire among them.

The building where firefighters and fire trucks/fire engines are housed when not answering an alarm.

(US) A public official with police powers responsible for enforcing fire safety regulations, and sometimes, who also investigates suspicious fires.

(obsolete, chemistry) oxygen

(military technology) A kind of missile guidance system which does not require further control after launch, and can hit its target without the launcher being in line of sight of the target.