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"

Moby Thesaurus II by Grady Ward, 1.0:

168 Moby Thesaurus words for "fund":
   Festschrift, Swiss bank account, accommodate, acknowledge, afford,
   afford support, aid, ana, angel, anthology, aquarium, assets,
   assist, available means, back, balance, bank account, bankroll,
   bear, bear out, bear the expense, bear up, body, bolster,
   bolster up, bottom dollar, bread, bucks, budget, buttress, cache,
   capital, capital gains distribution, capital goods,
   capital structure, capitalization, capitalize, cash reserves,
   checking account, chip in, chrestomathy, circulating capital,
   clothe, collectanea, collection, command of money, compilation,
   contribute, corpus, crutch, data, defray, defray expenses, donate,
   dough, endow, endowment, equity capital, exchequer, fill, fill up,
   finance, finances, find, fixed capital, floating capital,
   florilegium, foot the bill, funds, furnish, give, give support,
   go Dutch, grant, green, grist, grubstake, hard cash, help, hold up,
   holdings, honor a bill, inventory, invest, keep, kitty,
   lend support, library, life savings, liquid assets, lolly, loot,
   lucre, maintain, make available, make provision for, means,
   menagerie, mine, money, moneyed capital, moneys, museum, nest egg,
   patronize, pay for, pay the bill, pay the bills, pay the piper,
   pecuniary resources, pelf, pension, pension off, pocket, pool,
   prepare, present, principal, prop, prop up, property, provide,
   provide for, purse, raw data, ready, ready money, recruit, redeem,
   refinance, reinforce, replenish, repository, reserve, reserves,
   reservoir, resource, resources, savings, savings account, scratch,
   set up, shore, shore up, sponsor, stake, stand the costs, stock,
   store, subsidize, substance, subvention, subventionize, supply,
   support, sustain, treasure, undergird, unregistered bank account,
   upbear, uphold, upkeep, venture capital, wealth, wherewithal,
   working capital, yield, zoo