This document discusses various lexical semantic relations including homonymy, polysemy, synonymy, hyponymy, antonymy, and markedness. It provides definitions and examples for each relation. Homonymy refers to unrelated senses of the same word, while polysemy involves related senses. Synonyms have similar meanings, hyponyms have a more specific meaning, and antonyms have opposite meanings. Markedness describes when one word of a pair is marked by a prefix to indicate its status as the opposite. The document also discusses types of antonyms like reversives and directional opposites.