Was heißt »Reserve« auf Englisch?

Das Substantiv »Reserve« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Synonyme

Ansammlung:: accumulation; accumulativeness; aggregation; build-up; conglomerate; conglomeration; congregation; crowd; gathering; package
Hort:: day-nursery; golden; haven; hoard; hotbed; nursery school; refuge; shelter; treasure
Nachschub:: replenishment; supplies

I reserve the right to be wrong.
Despite our bad luck, we had one bit of good luck: we had performed a full backup the day before.
Tom always has a backup plan.
I want to reserve a first-class stateroom.
Bring backup.
There's a guy in there with a gun. I need backup.
I have no backup plan.
I had no backup plan.
The book is on course reserve.
The book is on the course reserve shelf.
Tom and Mary were my backup singers back when I used to perform.
I want to reserve a room.
In the name of tolerance, we should reserve the right not to tolerate intolerance.
How do you write a program which makes backup copies?
Good morning, I would like to reserve a room.
My father said he would reserve a day to take me to the zoo.
I'd like to reserve a seat.
I'd like to reserve a table for two.
I'd like to reserve a single room on June 3.
I'd like to reserve a seat on this train.