adventurer vs plunger

adventurer and plunger both are nouns.

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

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

adventurer (noun)	plunger (noun)
a person who enjoys taking risks	mechanical device that has a plunging or thrusting motion
someone who travels into little known regions (especially for some scientific purpose)	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)