WordWeb Online

1. Working for hourly wages rather than fixed (e.g. annual) salaries
   "wage-earning occupations include manual as well as industrial labour";
   - working-class
    
2. Of those who work for wages especially manual or industrial labourers
   "party of the wage-earning proletariat";
   - propertyless, working-class, blue-collar

See also: blue-collar, low-class, lower-class