B2[C]a small area on the surface of something that is damaged, dirty, or different in some way: There were dirty marks on her trousers where she had wiped her hands.His fingers had left marks on the table's polished surface.She had a red mark on her arm where she'd burned herself.Dirt and untidiness›[C]a typical feature or one that allows you to recognize someone or something: Did your attacker have any distinguishing marks, such as a scar or a birthmark?You can tell which puppy is which from the marks (also markings) on their fur.Conditions and characteristics