plunk vs power-dive

plunk is a noun but power-dive is not a noun.

Word	Noun	Adjective	Verb	Adverb
plunk	Yes	No	Yes	Yes
power-dive	No	No	Yes	No

As verbs, power-dive is a hyponym of plunk; that is, power-dive is a word with a more specific, narrower meaning than plunk:

Other hyponyms of plunk include nosedive, duck, crash-dive, chute, jump, parachute.

plunk (noun)	power-dive (noun)
(baseball) hitting a baseball so that it drops suddenly
a hollow twanging sound

plunk (verb)	power-dive (verb)
pull lightly but sharply with a plucking motion	make a power dive
set (something or oneself) down with or as if with a noise
drop steeply
make or move along with a sound as of a horse's hooves striking the ground

plunk (adverb)	power-dive (adverb)
with a short hollow thud