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

hold back or set aside, especially for future use or contingency

“they reserved 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”