accumulation - (finance) profits that are not paid out as dividends but are added to the capital base of the corporation

bank - a supply or stock held in reserve for future use (especially in emergencies)

fuel level - the amount of fuel remaining

reserve account, reserve fund - funds taken out of earnings to provide for anticipated future payments

heap, pile, cumulus, mound - a collection of objects laid on top of each other

have, have got, hold - have or possess, either in a concrete or an abstract sense; "She has $1,000 in the bank"; "He has got two beautiful daughters"; "She holds a Master's degree from Harvard"