venturer vs gambler

venturer and gambler both are nouns.

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

As nouns, gambler is a hyponym of venturer; that is, gambler is a word with a more specific, narrower meaning than venturer:

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