volunteer ***
unpaid worker

In a money-based society, the unpaid worker is doubly oppressed.

Just another way to get huge profits off the back of the unpaid workers of America.

The Government is especially sensitive about dissident activities because of growing unemployment and frequent protests by unpaid workers.

My company takes on unpaid workers and often we give them a paid job at the end of it.

No one was classified as an unpaid worker.

Meanwhile, Paul and Malcolm are looking for potential workers, paid and unpaid.

Inspection stations near David, the largest city in the province, are manned by unpaid workers who hope to be hired when more money becomes available.

The unpaid workers were often untrained and learned on the job.

It would be impossible to deal with disasters like flooding or major fires, in particular, without unpaid, unsalaried workers.

Two people, or 0.3%, of the population were classified as unpaid workers.