file away vs collect

file away is not a noun while collect is a noun.

Word	Noun	Adjective	Verb	Adverb
file away	No	No	Yes	No
collect	Yes	Yes	Yes	Yes

As verbs, collect is a hypernym of file away; that is, collect is a word with a broader meaning than file away:

Other hypernyms of file away include pull in.

file away (noun)	collect (noun)
	a short prayer generally preceding the lesson in the Church of Rome or the Church of England

file away (adjective)	collect (adjective)
	payable by the recipient on delivery

file away (verb)	collect (verb)
place in a container for keeping records	assemble or get together
put into an archive	get or bring together
	get or gather together
	call for and obtain payment of
	gather or collect

file away (adverb)	collect (adverb)
	make a telephone call or mail a package so that the recipient pays