Frame Semantics is a theory in linguistics that explores how words evoke mental structures called "frames." These frames represent knowledge about specific situations, events, or concepts, helping us understand the meaning of words in context. For example, the word buy activates a frame that includes participants like a buyer and a seller, as well as actions like payment and goods. This approach emphasizes that meaning is not just about individual words but also about the relationships and contexts in which they are used. By analyzing how different words relate to their frames, linguists can gain insights into human cognition and language processing.