'World' in the Bible

Now in those days an order was published by Caesar Augustus that the whole world should be registered.

The Devil also took him to a high place and showed him all the kingdoms of the world in an instant.

What profit will a person have if he gains the whole world, but destroys himself or is lost?

so those living today will be charged with the blood of all the prophets that was shed since the foundation of the world,

who will not receive many times as much in this world, as well as eternal life in the age to come."

People will faint from fear and apprehension because of the things that are to come on the inhabited world, because the powers of heaven will be shaken.