noun

coal

coal

The factory is powered by coal.

The factory is powered by coal.

They put more coal on the fire.

They put more coal on the fire.

coal (uncountable noun) a black rock used as fuel. The factory is powered by coal.

Synonyms: charcoal, carbon, fuel

From Old English 'col', meaning 'charcoal, glowing ember'.

Imagine a 'cold' black rock that can make things hot. 'Coal' sounds a bit like 'cold'.

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