What is the meaning of treasure bill?

A Treasury bill (T-bill) is a short-term government debt security issued by the U.S. Department of the Treasury. It is sold at a discount to its face value and does not pay periodic interest; instead, the investor receives the full face value at maturity. T-bills typically have maturities ranging from a few days to one year and are considered a low-risk investment. They are often used by investors to preserve capital and manage liquidity.