venturer vs plunger

venturer and plunger both are nouns.

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

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

venturer (noun)	plunger (noun)
a person who enjoys taking risks	mechanical device that has a plunging or thrusting motion
a merchant who undertakes a trading venture (especially a venture that sends goods overseas)	hand tool consisting of a stick with a rubber suction cup at one end; used to clean clogged drains
	someone who risks losses for the possibility of considerable gains
	someone who dives (into water)