Lexical semantics is a subfield of linguistics that studies the meaning of words and their relationships within a language. It focuses on how words convey meaning, how they relate to each other, and how context influences their interpretation. This area of study examines concepts like synonyms, antonyms, and polysemy, which is when a single word has multiple meanings. Additionally, lexical semantics explores how words combine to form phrases and sentences, impacting overall meaning. It also considers the role of morphemes, the smallest units of meaning, in understanding word formation. By analyzing these elements, researchers gain insights into language structure and communication.