save vs stash

save and stash both are nouns.

Word	Noun	Adjective	Verb	Adverb
save	Yes	No	Yes	No
stash	Yes	No	Yes	No

As verbs, stash is a hyponym of save; that is, stash is a word with a more specific, narrower meaning than save:

Other hyponyms of save include cache, hive up, hoard, lay away, squirrel away.

save (noun)	stash (noun)
(sports) the act of preventing the opposition from scoring	a secret store of valuables or money

save (verb)	stash (verb)
make unnecessary an expenditure or effort	save up as for future use
record data on a computer
to keep up and reserve for personal or special use
accumulate money for future use
spend less; buy at a reduced price
retain rights to
spend sparingly, avoid the waste of
bring into safety
save from ruin, destruction, or harm
save from sins
refrain from harming