14 possible answers to
Answers with 4 characters: HEAP Answers with 5 characters: HOARD RUNUP Answers with 6 characters: GARNER GATHER PILEUP ROLLUP RACKUP Answers with 7 characters: COLLECT COMPILE STOREUP Answers with 8 characters: GATHERIN Answers with 9 characters: STOCKPILE Answers with 11 characters: ACCUMMULATE