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coal

/kɔʊl/

When used as a noun to describe the fuel, "coal" is typically an uncountable noun. You would say "some coal" or "a lot of coal," rather than "a coal." As a verb, it is primarily used in historical or industrial contexts, specifically referring to ships or trains from the era of steam power.

💬Casual Conversation

🎬Tuesday afternoon, Fatima is researching for a history paper while Maya is lounging at home.
Fatima

My brain is fried. This chapter on the coal industry is an absolute slog.

Fatima
Maya
Maya

Just power through it. You're almost there.

💡
Fatima uses the slang 'fried' to describe mental exhaustion and 'slog' to describe a tedious task. Maya responds with the phrasal verb 'power through', meaning to continue working despite difficulties.

Meanings

noun

A combustible black or brownish-black sedimentary rock consisting mainly of carbonized plant matter, used as a fuel.

"The old steam engine was powered by coal."

verb (transitive)

To supply something with coal for fuel.

"They spent the afternoon coaling the ship for the long voyage."

Last Updated: May 22, 2026Report an Error