plunk vs sound

plunk and sound both are nouns.

Word	Noun	Adjective	Verb	Adverb
plunk	Yes	No	Yes	Yes
sound	Yes	Yes	Yes	No

As nouns, sound is a hypernym of plunk; that is, sound is a word with a broader meaning than plunk:

As verbs, sound is a hypernym of plunk; that is, sound is a word with a broader meaning than plunk:

plunk: make or move along with a sound as of a horse's hooves striking the ground
sound: make a certain noise or sound

Other hypernyms of plunk include go.

plunk (noun)	sound (noun)
(baseball) hitting a baseball so that it drops suddenly	the particular auditory effect produced by a given cause
a hollow twanging sound	the subjective sensation of hearing something
	the audible part of a transmitted signal
	(phonetics) an individual sound unit of speech without concern as to whether or not it is a phoneme of some language
	the sudden occurrence of an audible event
	a large ocean inlet or deep bay
	a narrow channel of the sea joining two larger bodies of water
	mechanical vibrations transmitted by an elastic medium

plunk (adjective)	sound (adjective)
	financially secure and safe
	in good condition; free from defect or damage or decay
	complete; thorough
	(of sleep) deep and complete
	in excellent physical condition
	exercising or showing good judgment
	free from moral defect
	vigorous or severe
	having legal efficacy or force
	logically valid

plunk (verb)	sound (verb)
pull lightly but sharply with a plucking motion	measure the depth of (a body of water) with a sounding line
set (something or oneself) down with or as if with a noise	utter with vibrating vocal chords
drop steeply	make a certain noise or sound
make or move along with a sound as of a horse's hooves striking the ground	cause to sound
	announce by means of a sound
	give off a certain sound or sounds
	appear in a certain way

plunk (adverb)	sound (adverb)
with a short hollow thud