fill out vs set down

fill out and set down both are verbs.

Word	Noun	Adjective	Verb	Adverb
fill out	No	No	Yes	No
set down	No	No	Yes	No

fill out (verb)	set down (verb)
become round, plump, or shapely	put down in writing; of texts, musical compositions, etc.
make bigger or better or more complete	remove (cargo, people, etc.) from and leave
write all the required information onto a form	put or settle into a position
make fat or plump	cause to sit or seat or be in a settled position or place
line or stuff with soft material	go ashore
supplement what is thought to be deficient	reach or come to rest