What is Bond Fund?

Legal Definition
A bond fund or debt fund is a fund that invests in bonds, or other debt securities. Bond funds can be contrasted with stock funds and money funds. Bond funds typically pay periodic dividends that include interest payments on the fund's underlying securities plus periodic realized capital appreciation. Bond funds typically pay higher dividends than CDs and money market accounts. Most bond funds pay out dividends more frequently than individual bonds.
-- Wikipedia
Legal Definition
A fund with a portfolio with only bonds in it to get regular interest income and low risk.