dash off vs set down

dash off and set down both are verbs.

Word	Noun	Adjective	Verb	Adverb
dash off	No	No	Yes	No
set down	No	No	Yes	No

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

Other hypernyms of dash off include get down, put down, write down.

dash off (verb)	set down (verb)
write down hastily	put down in writing; of texts, musical compositions, etc.
write quickly	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