[{"Bold_text": "noun", "List Items": ["a gangrenous or ulcerous sore, especially in the mouth.", "a disease affecting horses' feet, usually the soles, characterized by a foul-smelling exudate.", "a defined area of diseased tissue, especially in woody stems.", "something that corrodes, corrupts, destroys, or irritates.Synonyms: scourge , cancer , blight", "Also calledcanker rose.British Dialect. dog rose dog rose."]}, {"Bold_text": "verb (used with object)", "List Items": ["to infect with canker.", "to corrupt; destroy slowly."]}, {"Bold_text": "verb (used without object)", "List Items": ["to become infected with or as if with canker."]}]