'Realm' in the Bible

In every matter of wisdom and understanding, concerning which the king inquired of them, he found them ten times better than all the magicians and enchanters who were in all his realm.

Then this Daniel was distinguished above the presidents and the satraps, because an excellent spirit was in him; and the king thought to set him over the whole realm.

In the first year of Darius the son of Ahasuerus, of the seed of the Medes, who was made king over the realm of the Chaldeans,

Now will I show you the truth. Behold, there shall stand up yet three kings in Persia; and the fourth shall be far richer than they all: and when he has grown strong through his riches, he shall stir up all against the realm of Greece.

He shall come into the realm of the king of the south, but he shall return into his own land.