put down vs dash off

put down and dash off both are verbs.

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

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

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

put down (verb)	dash off (verb)
put down in writing; of texts, musical compositions, etc.	write down hastily
make a record of; set down in permanent form	write quickly
put in a horizontal position
remove (cargo, people, etc.) from and leave
cause to sit or seat or be in a settled position or place
put (an animal) to death
reduce in worth or character, usually verbally
cause to come to the ground