工友

gōngyǒu
  1. odd-job worker (janitor, groundsman etc) at a school or government office
  2. (old) worker
  3. fellow worker

CEDICT

old

Entry Composition

1 工 gōng
  1. work
  2. worker
  3. skill
  4. profession
  5. trade
  6. craft
  7. labor
2 友 yǒu friend