NOUN (1)

1. someone who makes excessive profit (especially on goods in short supply);


VERB (1)

1. make an unreasonable profit, as on the sale of difficult to obtain goods;

The Collaborative International Dictionary of English v.0.48:

profiteer \profiteer\ n.
   One who makes an excessive and unconscionable profit by
   exploiting scarcity or a monopoly position.
   [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

profiteer \profiteer\ v. i.
   To make an excessive profit, as on the sale of difficult to
   obtain goods; to act as a profiteer.
   [WordNet 1.5]

WordNet (r) 3.0 (2006):

profiteer
    n 1: someone who makes excessive profit (especially on goods in
         short supply)
    v 1: make an unreasonable profit, as on the sale of difficult to
         obtain goods