Semantic Frame Theory is a linguistic framework that focuses on how words and phrases evoke mental structures called "frames." These frames represent knowledge about specific situations, events, or concepts, helping individuals understand and interpret language. For example, the word buy activates a frame that includes roles like buyer, seller, and goods, along with the actions involved in a transaction. The theory emphasizes that meaning is not just about individual words but also about the relationships and contexts in which they are used. By analyzing these frames, researchers can gain insights into how language shapes thought and communication, revealing the underlying structures of human understanding.