DuckCorp

DuckCorp Dico

(RFC 2229 compliant dictionary server)
more options

Found one definition 

  1.                 From English - Polish Piotrowski+Saloni/FreeDict dictionary ver. 0.2:
                

    
                
                  
    onus /ˈəʊnəs/ <N>
  ciężar, obowiązek (on sb - na kimś)