#accrual__accumulation__accruement  the act of accumulating
  supertype:  step-up__increase  the act of increasing something; "he gave me an increase in salary"
  subtype:  buildup  the act of building up an accumulation
     subtype:  deposit__deposition  the act of depositing
        subtype:  repositing__reposition__storage__warehousing  depositing in a warehouse
           subtype:  stockpiling  accumulating and storing a reserve supply: "the stockpiling of war materials"

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