chameleon vs worker

chameleon and worker both are nouns.

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

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

Other hypernyms of chameleon include actor, doer.

chameleon (noun)	worker (noun)
lizard of Africa and Madagascar able to change skin color and having a projectile tongue	sterile member of a colony of social insects that forages for food and cares for the larvae
a changeable or inconstant person	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