DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   commerce
       n 1: transactions (sales and purchases) having the objective of
            supplying commodities (goods and services) [syn:
            commerce, commercialism, mercantilism]
       2: the United States federal department that promotes and
          administers domestic and foreign trade (including management
          of the census and the patent office); created in 1913 [syn:
          Department of Commerce, Commerce Department, Commerce,
          DoC]
       3: social exchange, especially of opinions, attitudes, etc.