Definition of "reserve" []

• To keep back, as for future use or for a special purpose. (verb-transitive)
• To set or cause to be set apart for a particular person or use. See Synonyms at book. (verb-transitive)
• To keep or secure for oneself; retain: I reserve the right to disagree. See Synonyms at keep. (verb-transitive)
• Something kept back or saved for future use or a special purpose. (noun)
• The act of reserving. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Readers are also cautioned that this press release may contain the term reserve life index, which is not a recognized measure under GAAP."
• "The term reserve growth refers to the typical increases in estimated ultimate recovery that occur as oil fields are developed and produced."
• "The capacity of the reserve is about 700M barrels and it currently has about 660M (according to the above site)."