Is “Firebox” a Scrabble word?
Yes
FIREBOX
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Firebox
noun
1.The chamber of a steam engine, or a steam locomotive, in which the fuel is burned.
2.The part of a fireplace where the fuel is burned.
3.A redheaded woman (by synecdoche, pars pro toto), or her red pubic hair.