The Collaborative International Dictionary of English v.0.48:

Fund \Fund\, n. [OF. font, fond, nom. fonz, bottom, ground, F.
   fond bottom, foundation, fonds fund, fr. L. fundus bottom,
   ground, foundation, piece of land. See Found to establish.]
   1. An aggregation or deposit of resources from which supplies
      are or may be drawn for carrying on any work, or for
      maintaining existence.
      [1913 Webster]

   2. A stock or capital; a sum of money appropriated as the
      foundation of some commercial or other operation
      undertaken with a view to profit; that reserve by means of
      which expenses and credit are supported; as, the fund of a
      bank, commercial house, manufacturing corporation, etc.
      [1913 Webster]

   3. pl. The stock of a national debt; public securities;
      evidences (stocks or bonds) of money lent to government,
      for which interest is paid at prescribed intervals; --
      called also public funds.
      [1913 Webster]

   4. An invested sum, whose income is devoted to a specific
      object; as, the fund of an ecclesiastical society; a fund
      for the maintenance of lectures or poor students; also,
      money systematically collected to meet the expenses of
      some permanent object.
      [1913 Webster]

   5. A store laid up, from which one may draw at pleasure; a
      supply; a full provision of resources; as, a fund of
      wisdom or good sense.
      [1913 Webster]

            An inexhaustible fund of stories.     --Macaulay.
      [1913 Webster]

   Sinking fund, the aggregate of sums of money set apart and
      invested, usually at fixed intervals, for the
      extinguishment of the debt of a government, or of a
      corporation, by the accumulation of interest.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Fund \Fund\, v. t. [imp. & p. p. Funded; p. pr. & vb. n.
   Funding.]
   1. To provide and appropriate a fund or permanent revenue for
      the payment of the interest of; to make permanent
      provision of resources (as by a pledge of revenue from
      customs) for discharging the interest of or principal of;
      as, to fund government notes.
      [1913 Webster]

   2. To place in a fund, as money.
      [1913 Webster]

   3. To put into the form of bonds or stocks bearing regular
      interest; as, to fund the floating debt.
      [1913 Webster]

WordNet (r) 3.0 (2006):

fund
    n 1: a reserve of money set aside for some purpose [syn: fund,
         monetary fund]
    2: a supply of something available for future use; "he brought
       back a large store of Cuban cigars" [syn: store, stock,
       fund]
    3: a financial institution that sells shares to individuals and
       invests in securities issued by other companies [syn:
       investment company, investment trust, investment firm,
       fund]
    v 1: convert (short-term floating debt) into long-term debt that
         bears fixed interest and is represented by bonds
    2: place or store up in a fund for accumulation
    3: provide a fund for the redemption of principal or payment of
       interest
    4: invest money in government securities
    5: accumulate a fund for the discharge of a recurrent liability;
       "fund a medical care plan"
    6: furnish money for; "The government funds basic research in
       many areas"