stash vs squirrel away

stash is a noun but squirrel away is not a noun.

Word	Noun	Adjective	Verb	Adverb
stash	Yes	No	Yes	No
squirrel away	No	No	Yes	No

As verbs, stash and squirrel away are synonyms defined as:

Other synonyms of stash include cache, hive up, hoard, lay away.

stash (noun)	squirrel away (noun)
a secret store of valuables or money

stash (verb)	squirrel away (verb)
save up as for future use	save up as for future use