Which term describes a dog's tendency to fight with other dogs?

The term that accurately describes a dog's tendency to fight with other dogs is Dogfight Tendency. This term specifically refers to the predisposition or inclination of certain dogs to engage in aggressive confrontations with other dogs, which can stem from various factors such as genetics, socialization experiences, or territorial instincts. Understanding this behavior is crucial for handlers and trainers, as it can impact training approaches, socialization efforts, and safety measures in environments where multiple dogs interact.

The other options do not relate to this specific behavior. Agility refers to a dog's physical ability to navigate obstacles quickly and efficiently. Distractibility pertains to how easily a dog can be distracted from tasks or commands, which is unrelated to fighting tendencies. Hardiness describes a dog’s ability to withstand difficult or adverse conditions, which, while important, does not specifically address the behavior of engaging in fights with other dogs.