exit vs file out

exit is a noun but file out is not a noun.

Word	Noun	Adjective	Verb	Adverb
exit	Yes	No	Yes	No
file out	No	No	Yes	No

As verbs, file out is a hyponym of exit; that is, file out is a word with a more specific, narrower meaning than exit:

exit (noun)	file out (noun)
the act of going out
an opening that permits escape or release
euphemistic expressions for death

exit (verb)	file out (verb)
pass from physical life and lose all bodily attributes and functions necessary to sustain life	march out, in a file
lose the lead
move out of or depart from