We've found 4 phrases for coal (0.194 seconds):

brown power »    The production of electricity made from conventional sources, such as coal, oil, natural gas and nuclear power.

carry coals to Newcastle »    To do something that is unneeded or redundant.

coals to Newcastle »    A pointless venture, in the sense of sending something to a place where it's made, or where they already have an abundance.

haul somebody over the coals »    To express anger with someone in no uncertain terms when they do something wrong.

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