1) Hid away 2) In a cache 3) Kept in a cache 4) Like loot, often 5) Put away secretly 6) Salted away 7) Saved for a rainy day 8) Secreted 9) Socked away 10) Squirreled away 11) Stockpiled 12) Stored away, slang 13) Tucked away 14) Under the mattress 15) Warehoused Found on https://www.crosswordclues.com/clue/stashed