Definitions
1.NounA sum or source of money."the fund of a bank, commercial house, manufacturing corporation, etc.; a fund for the maintenance of underprivileged students"
2.NounAn organization managing such money.
3.NounA money-management operation, such as a mutual fund."Several major funds were declared insolvent recently."
4.NounA large supply of something to be drawn upon."He drew on his immense fund of knowledge."
5.VerbTo pay or provide money for."He used his inheritance to fund his gambling addiction."
6.VerbTo place (money) in a fund.
7.VerbTo form a debt into a stock charged with interest.