DuckCorp Dico

Found one definition

1.                 From en.wiktionary.org:
                   
   
   
                   
                     
   [working]
   
   ** English
   
   *** Etymology
   Probably an Americanized form of [en].
   
   *** Proper noun
   [s]
   
    1. [en] .
   **** Statistics
   
    - According to the 2010 United States Census, _Working_  is the 41959 <sup> th </sup>  most common surname in the United States, belonging to 518 individuals. _Working_  is most common among White (94.79%) individuals.
   *** Further reading
   
    - [R:en:DAFN]