'Deputy' in the Bible

There was then no king in Edom: a deputy was king.

Which was with the deputy of the country, Sergius Paulus, a prudent man; who called for Barnabas and Saul, and desired to hear the word of God.

But Elymas the sorcerer (for so is his name by interpretation) withstood them, seeking to turn away the deputy from the faith.

Then the deputy, when he saw what was done, believed, being astonished at the doctrine of the Lord.

And when Gallio was the deputy of Achaia, the Jews made insurrection with one accord against Paul, and brought him to the judgment seat,