Meanings (ES + gloss)
reservar
To keep back; to retain.
I will reserve judgment until I have actually read his book.
We reserve the right to make modifications.
reservar
To keep in store for future or special use.
Please reserve me a parking space if you can.
This cake is reserved for the guests!
reservar
To book in advance; to make a reservation for.
I reserved a table for us at the best restaurant in town.
Thanks for reserving us a room!