The Collaborative International Dictionary of English v.0.48:

Money-making \Mon"ey-mak`ing\, n.
   The act or process of making money; the acquisition and
   accumulation of wealth.
   [1913 Webster]

         Obstinacy in money-making.               --Milman.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Money-making \Mon"ey-mak`ing\, a.
   1. Affording profitable returns; lucrative; as, a
      money-making business. Opposite of unprofitable.
      [1913 Webster]

   2. Successful in gaining money, and devoted to that aim; as,
      a money-making man.
      [1913 Webster]

WordNet (r) 3.0 (2006):

moneymaking
    adj 1: producing a sizeable profit; "a remunerative business"
           [syn: lucrative, moneymaking, remunerative]
    2: profit oriented; "a commercial book"; "preached a mercantile
       and militant patriotism"- John Buchan; "a mercenary
       enterprise"; "a moneymaking business" [syn: mercantile,
       mercenary, moneymaking(a)]
    n 1: the act of making money (and accumulating wealth)

Moby Thesaurus II by Grady Ward, 1.0:

56 Moby Thesaurus words for "moneymaking":
   accession, acquirement, acquisition, addition, advantageous,
   attainment, banausic, breadwinning, businesslike, coming by,
   commercial, compensating, compensative, compensatory,
   dragging down, earnings, fat, gainful, gaining, getting,
   getting hold of, good, lucrative, making, materialistic,
   moneygetting, moneygrubbing, obtainment, obtention, paying,
   practical, procural, procurance, procuration, procurement,
   productive, profitable, prosaic, realistic, remunerative,
   reparative, repaying, retributive, retributory, rewardful,
   rewarding, satisfying, securement, trover, utilitarian,
   well-paying, winning, workaday, workday, working, worthwhile