get down vs dash down

get down and dash down both are verbs.

Word	Noun	Adjective	Verb	Adverb
get down	No	No	Yes	No
dash down	No	No	Yes	No

As verbs, dash down is a hyponym of get down; that is, dash down is a word with a more specific, narrower meaning than get down:

Other hyponyms of get down include transcribe, notate, dash off, note, take down.

get down (verb)	dash down (verb)
take the first step or steps in carrying out an action	write down hastily
put down in writing; of texts, musical compositions, etc.
pass through the esophagus as part of eating or drinking
lower someone's spirits; make downhearted
move something or somebody to a lower position
alight from (a horse)
lower (one's body) as by kneeling