thud vs sound

thud and sound both are nouns.

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

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

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

Other hypernyms of thud include go.

thud (noun)	sound (noun)
a heavy dull sound (as made by impact of heavy objects)	the particular auditory effect produced by a given cause
	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

thud (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

thud (verb)	sound (verb)
strike with a dull sound	measure the depth of (a body of water) with a sounding line
make a dull sound	utter with vibrating vocal chords
make a noise typical of an engine lacking lubricants	make a certain noise or sound
	cause to sound
	announce by means of a sound
	give off a certain sound or sounds
	appear in a certain way