'World' in the Bible

And it came to pass in those days, there went forth a decree from Caesar Augustus, that all the world be enrolled --

And the Devil having brought him up to an high mountain, shewed to him all the kingdoms of the world in a moment of time,

for what is a man profited, having gained the whole world, and having lost or having forfeited himself?

that the blood of all the prophets, that is being poured forth from the foundation of the world, may be required from this generation;

for all these things do the nations of the world seek after, and your Father hath known that ye have need of these things;

men fainting at heart from fear, and expectation of the things coming on the world, for the powers of the heavens shall be shaken.