Is there some substantial difference between ‘castle’ and ‘palace’ that I’m unaware of that got my translation with ‘castle’ rejected?
Yes, fundamentally different. Just google for pictures: You will see that a castle is fortified, that is, can easily be defended. A palace is a grandiose residence with lots of decoration etc.
Ah, I see; so ‘castle’ would be טירה.
Unable to understand the word for palace on the audio.
éize armón gadól.