"worker" in the noun sense
a person who works at a specific occupation
"he is a good worker"
2. proletarian, prole, worker
a member of the working class (not necessarily employed
"workers of the world
sterile member of a colony of social insects that forages for food and cares for the larvae
4. actor, doer, worker
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"
Source: WordNet® (An amazing lexical database of English)
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