The word 谈话 is formed by combining two characters, each contributing a core idea related to verbal exchange. The first character, 谈, carries the fundamental meaning of "to talk" or "to discuss", establishing the action. The second character, 话, means "speech" or "words", providing the substance or content of the exchange. Their union creates a single, unified concept where the act of talking and the words spoken are conceptually blended, resulting in a term that holistically represents a "conversation" or "talk" as a complete event.