'Reserve' (sometimes 'Reserves') may refer to:
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Course reserve, library materials reserved for particular users
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Dynamic reserve, the set of metabolites that the organism can use for metabolic purposes
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Reserve clause, in North American professional sports contracts
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Game reserve, land set aside for maintenance of wildlife for tourism or hunting
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Fuel reserve, an extra fuel tank, or extra fuel in the main fuel tank
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Recreation reserve, a
park with sporting or other recreational facilities
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Reserve stockpile, bulk materials reserved for future use
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Reserved decision, where a judge takes time to review evidence and the law and delivers a decision at a later time
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Nature reserve, a protected area of importance for wildlife, flora, fauna or features of geological or other special interest,
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Indian reserve, in Canada, a tract of land reserved for the use and benefit of a band
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Reserve team, the second team fielded by a sports club, often football-soccer
;Economic
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Official gold reserves, held by central banks as a store of value
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Strategic Petroleum Reserve, an emergency petroleum store maintained by the U.S. Department of Energy
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Fractional-reserve banking
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Bank reserves, holdings of deposits in central banks plus currency that is physically held in bank vaults
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Foreign exchange reserves, the foreign currency deposits held by central banks and monetary authorities
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Reserve currency, a currency which is held in significant quantities as part of foreign exchange reserves
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Reserve (accounting), any part of shareholders' equity, except for basic share capital
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Natural resource reserves, natural resources that are economically recoverable, e.g.
Oil reserves
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Actuarial reserves, a liability equal to the present value of the future expected cash flows of a contingent event
;Military
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Military reserve force, part-time military personnel and civilians who are available to fight when a nation mobilizes for war
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Military reserve, military personnel not committed to battle so that they are available to address unforeseen situations
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Reserve component of the Armed Forces of the United States, "the Guard and Reserves"
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War Reserve Stock, a collection of warfighting material held in reserve in pre-positioned storage to be used if needed in wartime
;Placenames
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Reserve, Kansas
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Reserve, Louisiana
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Reserve, Montana
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Reserve, New Mexico
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Reserve, Wisconsin
See also
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Reservation (disambiguation)
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Preserve (disambiguation)
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Reservoir (disambiguation)