reserve

formality and propriety of manner

something kept back or saved for future use or a special purpose

an athlete who plays only when a starter on the team is replaced

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

a district that is reserved for particular purpose

armed forces that are not on active duty but can be called in an emergency

the trait of being uncommunicative; not volunteering anything more than necessary

hold back or set aside, especially for future use or contingency; "they held back their applause in anticipation"

give or assign a resource to a particular person or cause; "I will earmark this money for your research"; "She sets aside time for meditation every day"

obtain or arrange (for oneself) in advance; "We managed to reserve a table at Maxim's"

arrange for and reserve (something for someone else) in advance; "reserve me a seat on a flight"; "The agent booked tickets to the show for the whole family"; "please hold a table at Maxim's"