firewood
n. uncountable A2 Elementary US //ˈfaɪɝˌwʊd// UK //fˈaɪəwʊd// fire·wood
n. wood that you cut into pieces and burn in a fire to stay warm or to cook food.
n. wood that is prepared for use as fuel in a fireplace, stove, or campfire. Often refers to logs or branches that have been seasoned or dried to improve combustion.
We need to gather more firewood before the sun goes down.
The cabin was stocked with enough seasoned firewood to last through the coldest weeks of the winter.
Sustainable forestry practices ensure that the collection of firewood does not deplete the local ecosystem or destroy the habitats of nesting birds.
From Middle English ferwode, fyrewoode, equivalent to fire + wood.
Usage
Uncountable when referring to the material as a whole; occasionally used with 'piece of' or 'load of' to indicate quantity.