automaton vs worker

automaton and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
automaton	Yes	No	No	No
worker	Yes	No	No	No

As nouns, worker is a hypernym of automaton; that is, worker is a word with a broader meaning than automaton:

Other hypernyms of automaton include actor, doer.

automaton (noun)	worker (noun)
a mechanism that can move automatically	sterile member of a colony of social insects that forages for food and cares for the larvae
a machine that operates on its own without the need for human control	a person who works at a specific occupation
someone who acts or responds in a mechanical or apathetic way	a member of the working class (not necessarily employed)
	a person who acts and gets things done