noun · coal, charcoal, or bituminous coal used as fuel or in mining

他往炉子里添了几块黑炭。

a dark, blackish-gray color characteristic of charcoal

他穿了一件黑炭色的西装。

noun · referring to skin that is very dark or deeply tanned

他在户外工作了几年，皮肤黑得像块黑炭。