plonk vs set down

plonk is a noun but set down is not a noun.

Word	Noun	Adjective	Verb	Adverb
plonk	Yes	No	Yes	No
set down	No	No	Yes	No

As verbs, set down is a hypernym of plonk; that is, set down is a word with a broader meaning than plonk:

Other hypernyms of plonk include place down, put down.

plonk (noun)	set down (noun)
the noise of something dropping (as into liquid)
a cheap wine of inferior quality

plonk (verb)	set down (verb)
set (something or oneself) down with or as if with a noise	put down in writing; of texts, musical compositions, etc.
	remove (cargo, people, etc.) from and leave
	put or settle into a position
	cause to sit or seat or be in a settled position or place
	go ashore
	reach or come to rest