to put by or away as for safekeeping or future use, usually in a secret place (usually fol. by away )

The squirrel stashes away nuts for winter.

something put away or hidden

a stash of gold coins buried in the garden.

a place in which something is stored secretly; hiding place; cache.

Slang . a supply of hidden drugs.

verb

bury , cache , conceal , ensconce , occult , secrete , squirrel , stockpile , treasure

noun

backlog , cache , inventory , nest egg , reserve , reservoir , stock , stockpile , store , treasure