gambler vs venturer

gambler and venturer both are nouns.

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

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

Other hypernyms of gambler include adventurer.

gambler (noun)	venturer (noun)
a person who wagers money on the outcome of games or sporting events	a person who enjoys taking risks
someone who risks loss or injury in the hope of gain or excitement	a merchant who undertakes a trading venture (especially a venture that sends goods overseas)