thump vs palpitate

thump is a noun but palpitate is not a noun.

Word	Noun	Adjective	Verb	Adverb
thump	Yes	No	Yes	No
palpitate	No	No	Yes	No

As verbs, palpitate is a hyponym of thump; that is, palpitate is a word with a more specific, narrower meaning than thump:

Other hyponyms of thump include pulsate, pulse, throb, flutter, thrash, flap.

thump (noun)	palpitate (noun)
a heavy blow with the hand
a heavy dull sound (as made by impact of heavy objects)

thump (verb)	palpitate (verb)
hit hard with the hand, fist, or some heavy instrument	beat rapidly
move rhythmically	shake with fast, tremulous movements
make a dull sound	cause to throb or beat rapidly