The word 辩论 is formed by combining two characters, 辩 and 论, which each carry a closely related core meaning concerning speech and reasoning. 辩 (biàn) fundamentally means to argue, differentiate, or defend a point, often with an implication of clarity and distinction. 论 (lùn) means to discuss, analyze, or expound upon a theory or topic. When paired, they create a synergistic compound where the first character emphasizes the contentious, dialectical aspect of an exchange, and the second emphasizes the structured, discursive nature of it. Together, they form a single concept stronger than either part alone, perfectly encapsulating the idea of a formal debate or argument where opposing sides present reasoned discourse.