touch down vs set down

touch down and set down both are verbs.

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

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

Other hypernyms of touch down include land.

touch down (verb)	set down (verb)
come or bring (a plane) to a landing	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