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Vocabulary Entry
coal
|noun • verb • adjective
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N
noun
A combustible black or dark brown rock consisting chiefly of carbonized plant matter, used as a fuel.
Example Sentences
"The factory uses coal to generate electricity."
"He decided to heat his home with coal during the winter."
"They discovered a significant deposit of coal in the region."
V
verb
To take on or provide coal as fuel (commonly used in the context of steam engines or heating).
Example Sentences
"The crew needed to coal the steam engine for the long journey ahead."
"They coaled the ship before setting sail."
"The workers coaled the furnace to maintain the heat."
A
adjective
Of dark color resembling coal; black or very dark.
Example Sentences
"She wore a coal-black dress to the evening gala."
"The sky turned a coal gray before the storm."
"The artist used coal hues in her latest painting."