民工

míngōng
  1. migrant worker (who moved from a rural area of China to a city to find work)
  2. temporary worker enlisted on a public project

CEDICT

Entry Composition

1 民 mín
  1. (bound form) the people
  2. inhabitants of a country
2 工 gōng
  1. work
  2. worker
  3. skill
  4. profession
  5. trade
  6. craft
  7. labor