[1] : The Collaborative International Dictionary of English v.0.48

bankroll \bankroll\ n.
   1. the money carried on one's person. "he shot his bankroll
      on a bob-tailed nag."

   syn: roll, wad.
        wordnet 1.5 +pjc

   2. one's total supply of money; funds.
      pjc

[2] : The Collaborative International Dictionary of English v.0.48

bankroll \bankroll\ v. t.
   to pay the costs of; as, who will bankroll the restoration of
   the former east german economy?.
   wordnet 1.5

[3] : WordNet (r) 2.0

bankroll
     n : a roll of currency notes often taken as the resources of a
         person or business etc.; "he shot his roll on a
         bob-tailed nag" syn: roll
     v : provide with sufficient funds; finance; "who will bankroll
         the restoration of the former east german economy?"
see also:
roll 

[4] : Moby Thesaurus II by Grady Ward, 1.0

18 moby thesaurus words for "bankroll":
   angel, back, capitalize, finance, fund, grubstake, patronize,
   pay for, provide for, refinance, roll, set up, shoestring, sponsor,
   stake, subsidize, support, wad

Bankroll >> B Words
Bankroll, definition of term: Bankroll
bankroll_pag1.html