'Worker' definitions:

Definition of 'worker'

From: WordNet
noun
A person who works at a specific occupation; "he is a good worker" [ant: nonworker]
noun
A member of the working class (not necessarily employed); "workers of the world--unite!" [syn: proletarian, prole, worker]
noun
Sterile member of a colony of social insects that forages for food and cares for the larvae
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" [syn: actor, doer, worker]

Definition of 'Worker'

From: GCIDE
  • Worker \Work"er\, n.
  • 1. One who, or that which, works; a laborer; a performer; as, a worker in brass. [1913 Webster]
  • Professors of holiness, but workers of iniquity. --Shak. [1913 Webster]
  • 2. (Zool.) One of the neuter, or sterile, individuals of the social ants, bees, and white ants. The workers are generally females having the sexual organs imperfectly developed. See Ant, and White ant, under White. [1913 Webster]