ball of fire vs worker

ball of fire and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
ball of fire	Yes	No	No	No
worker	Yes	No	No	No

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

Other hypernyms of ball of fire include actor, doer.

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

Other hypernyms of ball of fire include actor, doer.

ball of fire (noun)	worker (noun)
someone whose career progresses rapidly	sterile member of a colony of social insects that forages for food and cares for the larvae
a highly energetic and indefatigable 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