lay away vs cache

lay away is not a noun while cache is a noun.

Word	Noun	Adjective	Verb	Adverb
lay away	No	No	Yes	No
cache	Yes	No	Yes	No

As verbs, lay away and cache are synonyms defined as:

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

lay away (noun)	cache (noun)
	a hidden storage space (for money or provisions or weapons)
	(computer science) RAM memory that is set aside as a specialized buffer storage that is continually updated; used to optimize data transfers between system elements with different characteristics
	a secret store of valuables or money

lay away (verb)	cache (verb)
save up as for future use	save up as for future use