'Regions' in the Bible

This is the land that yet remaineth: all the regions of the Philistines, and all the Geshurites;

Yea, and what are ye to me, O Tyre, and Sidon, and all the regions of Philistia? will ye render me a recompense? and if ye recompense me, swiftly and speedily will I return your recompense upon your own head.

And Saul was consenting unto his death. And there arose on that day a great persecution against the church which was in Jerusalem; and they were all scattered abroad throughout the regions of Judaea and Samaria, except the apostles.

but now, having no more any place in these regions, and having these many years a longing to come unto you,

As the truth of Christ is in me, no man shall stop me of this glorying in the regions of Achaia.

Then I came unto the regions of Syria and Cilicia.