What is second to none?

"Second to none" is an idiomatic expression in English that means something or someone is the best and surpasses all others in a particular field or quality. It is often used to describe individuals, products, services, or experiences that are unparalleled and cannot be outmatched. For instance, if a restaurant's food and service are described as second to none, it means they are of the highest standard and better than those of any competitors.