Definition
(noun) formality and propriety of manner

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Definition
(noun) something kept back or saved for future use or a special purpose

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Definition
(noun) an athlete who plays only when a starter on the team is replaced

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Definition
(noun) (medicine) potential capacity to respond in order to maintain vital functions

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Definition
(noun) a district that is reserved for particular purpose

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Definition
(noun) armed forces that are not on active duty but can be called in an emergency

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Definition
(noun) the trait of being uncommunicative; not volunteering anything more than necessary

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Definition
(verb) hold back or set aside, especially for future use or contingency

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Definition
(verb) give or assign a resource to a particular person or cause

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Definition
(verb) obtain or arrange (for oneself) in advance

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Definition
(verb) arrange for and reserve (something for someone else) in advance

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