defecator vs worker

defecator and worker both are nouns.

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

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

Other hypernyms of defecator include actor, doer.

defecator (noun)	worker (noun)
(obsolete) that which cleanses or purifies; especially, an apparatus for removing the feculencies of juices and syrups.	sterile member of a colony of social insects that forages for food and cares for the larvae
a person who defecates	a person who works at a specific occupation
	a member of the working class (not necessarily employed)
	a person who acts and gets things done