Meaning of the word "in reserve" in English

What does "in reserve" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

in reserve

US /ɪn rɪˈzɜrv/
UK /ɪn rɪˈzɜːv/

Phrase

kept for future use; held back or set aside

Example:
We have some extra supplies in reserve in case of an emergency.
She always keeps a little money in reserve.