"(by|in) leaps and bounds" の定義と意味

What is the origin of the idiom "by leaps and bounds" and when to use it?

The idiom "by leaps and bounds" has its origins in the world of sports, particularly in athletic events like long jump or high jump. A "leap" refers to a long jump or a sudden burst of movement, while "bounds" refers to energetic and rapid movements. This expression is used to describe significant and rapid progress, growth, or improvement in a particular area. It emphasizes the idea of making substantial strides or advances.