firebox
- n a furnace (as on a steam locomotive) in which fuel is burned
firebrand
- n a piece of wood that has been burned or is burning
- n someone who deliberately foments trouble
firebreak
- n a narrow field that has been cleared to check the spread of a prairie fire or forest fire
firebrick
- n brick made of fire clay; used for lining e.g. furnaces and chimneys
firebug
- n a criminal who illegally sets fire to property
- n a true bug: brightly colored bug that can exude a stain
firecracker
- n firework consisting of a small explosive charge and fuse in a heavy paper casing