gambler vs worker

gambler and worker both are nouns.

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

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

gambler: a person who wagers money on the outcome of games or sporting events
worker: a person who acts and gets things done

Other hypernyms of gambler include actor, doer.

gambler (noun)	worker (noun)
a person who wagers money on the outcome of games or sporting events	sterile member of a colony of social insects that forages for food and cares for the larvae
someone who risks loss or injury in the hope of gain or excitement	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