What is 10 year USD swap rate?

Can you please explain what exactly is meant by the 10-year USD swap rate? I understand it's related to the financial markets, but I'm unsure of its significance and how it's calculated. Is it an indicator of future interest rate expectations? How does it impact the economy and individual investors? Also, how does it compare to other financial instruments like bonds or stocks? I'm eager to gain a better understanding of this concept.