Cogency/ˈkəʊdʒənsi/ Definition 1 of 1Pro Tip 1/3Academic Tone Cogency often relates to academic or formal discussions where logical reasoning is crucial. The cogency of her thesis was undeniable. Pro Tip 2/3Debate Strength In debates, cogency refers to how convincing and well-structured an argument is. His cogency on the issue swayed the audience's opinion. Pro Tip 3/3Evidence Importance Cogency requires supporting evidence; without it, arguments might seem weak or unfounded. The study's cogency hinged on robust empirical data.