T-Bills, the common name for a U.S. Treasury bill, are short-term (with a maturity of up to a year) discounted government securities sold through competitive bidding at weekly and monthly auctions in denominations from $10,000 to $1 million. Individuals can also purchase them directly from a Federal Reserve Bank in denominations of under $500,000.
United States Treasury securities. Considered the closest thing to a risk-free investment, these pay slightly more than the rate of inflation. Often used as a benchmark against which to measure the risk and return profile of other investments.
discount instruments issued by the U.S. Treasury with maturities of 13, 26, and 52 weeks