Why is Hi-Fi called Hi-Fi?

Have you ever wondered about the origin of the term "Hi-Fi"? It's quite intriguing, isn't it? The phrase "Hi-Fi" stands for "High Fidelity," and it's a term that's been around for quite some time in the audio world. But why is it called Hi-Fi, exactly? What makes it different from regular audio equipment? Is it simply a marketing ploy, or is there more to it than that? Join me as we delve into the history and meaning behind the term "Hi-Fi" and uncover the reasons why it's become synonymous with high-quality audio.