romper vs worker

romper and worker both are nouns.

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

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

Other hypernyms of romper include actor, doer.

romper (noun)	worker (noun)
a one-piece garment for children to wear at play; the lower part is shaped like bloomers	sterile member of a colony of social insects that forages for food and cares for the larvae
a person who romps or frolics	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