Reserve
/ɹɪˈzɜːv/
noun
(behaviour) Restriction.
That which is reserved or kept back, as for future use.
(social) Something initially kept back for later use in a recreation.
Synonyms: Army Reserve, TA, TAVR, Territorial Army, reservists, terriers, territorials, reticence
verb
To keep back; to retain.
“We reserve the right to make modifications.”
To keep in store for future or special use.
“This cake is reserved for the guests!”
To book in advance; to make a reservation.
“I reserved a table for us at the best restaurant in town.”