worker

Noun

• a person who acts and gets things done
  • he's a principal actor in this affair
    
  • when you want something done get a doer
    
  • he's a miracle worker
    

• sterile member of a colony of social insects that forages for food and cares for the larvae

• a member of the working class (not necessarily employed)
  • workers of the world--unite!
    

• a person who works at a specific occupation
  • he is a good worker
    

Related words

• Synonyms: 
  actor , doer , proletarian , prole