'Span' in the Bible

Now Jacob lived in the land of Egypt 17 years, and his life span was 147 years.

You, indeed, have made my days short in length,and my life span as nothing in Your sight.Yes, every mortal man is only a vapor.Selah

Add days to the king’s life;may his years span many generations.

On that day Tyre will be forgotten for 70 years—the life span of one king. At the end of 70 years, what the song says about the prostitute will happen to Tyre:

Who has measured the waters in the hollow of his handor marked off the heavens with the span of his hand?Who has gathered the dust of the earth in a measureor weighed the mountains in a balanceand the hills in the scales?