(n) (sens) laborer (labourer)
blue-collar worker
(P)
(n) itinerant laborer
migrant worker
(n) immigrant worker
(n) seasonal laborer
seasonal labourer
(n) construction worker
(n) factory worker
(n) longshoreman
stevedore
(n) miner
(n) casual laborer (labourer)
day laborer (labourer)
(n) unemployed labor
unemployed labour
(n) fulltime worker
permanent worker
(n) organized labour (organised, labor)
unionized labour
(n) coal miner
(n) manual laborer
manual labourer
(n) dispatched worker
(n) working class
(n) labor rally
labour rally
(n) foreign worker
(n) white-collar
(n) migrant worker
economic nomad
(n) day laborer
day labourer
(n) non-fulltime worker
non-permanent worker
temp worker
temporary worker
(n) manpower business
manpower agency
(n) Temporary Staffing Services Law
(n) workers' accident compensation insurance