char ‧ coal /ˈtʃɑːkəʊl $ ˈtʃɑːrkoʊl/ BrE AmE noun
[ Date: 1300-1400 ; Origin: Probably from char 'to turn' (11-17 centuries) (from Old English cerran ) + coal ]
1 . [uncountable] a black substance made of burned wood that can be used as ↑ fuel :
cooking over a charcoal fire
2 . [uncountable and countable] a stick of this substance used for drawing:
a sketch drawn in charcoal
3 . ( also ˌcharcoal ˈgrey ) [uncountable] a dark grey colour
—charcoal adjective