Firebox

7 lettersnounmoderate

Updated June 2026

Definition

The enclosed combustion chamber of a furnace or boiler, especially on a steam locomotive, where the fuel is burnt.

“The driver shovelled coal into the firebox to build up pressure in the boiler.”

Pronunciation

Syllables

fire·box

Related Words

Synonyms

furnacecombustion chamberhearth grate

Word Game Tips

🟩

Wordle

Ends in -BOX and the X is high-value, with its position at the end sharply narrowing Wordle possibilities

🔤

Scrabble

X scores 8 points making firebox an excellent Scrabble play, and the FIRE- prefix adds strong overall value

Words Related to Firebox

Words you can make from Firebox

Shorter words formed from the letters in “firebox”.

foxier bifer boxer brief ferio ferox fiber fibre fibro fixer forex foxer foxie rebox refix roxie beri bier boer bore bori brei brie brio

Explore Similar Words

7-letter words starting with F 7-letter words ending with X All 7-letter words 6-letter words 8-letter words All word lists

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Dictionary References

Look up firebox in an authoritative dictionary for full definitions, pronunciation, and etymology.

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