blue–col·lar 
/ˈblu:ˈkɑ:lɚ/ adjective
/ˈblu:ˈkɑ:lɚ/ adjective : requiring physical work
▪ blue-collar jobs [=jobs making things in a factory, fixing machines, building things, etc.] : relating to or having jobs that require physical work ▪ blue-collar [=working-class] workers/families — compare pink-collar, white-collar
▪ blue-collar jobs [=jobs making things in a factory, fixing machines, building things, etc.] : relating to or having jobs that require physical work ▪ blue-collar [=working-class] workers/families — compare pink-collar, white-collar
