bark — Plants and Trees bark /bɑːk/ noun CEFR A2 The hard outer covering of a tree's trunk and branches. “The bark of the tree feels rough.” Related words in this scene potplantflowerseedtreegrassleafbranchsoilbushweedgrowfruitvegetableharvestblossomrootstempetalbudgardentrunkthornsunlightmeadowpicktalltwigsproutvinepollenmoss Practice this word Create worksheet