Horses are kept in a stable.
a stable
A horse has a stall inside the stable or barn.
"Old Whitey" was the war horse he kept at the White House.
The place is called "port" where ships are kept? woodenboatusa.com
The place in which a horse is kept is usually called a stable, stall, or loose box. And the place in which this box exists is called a yard or barn.
stillo
Hangar
An apiary.
columbarium
Hangar
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