What does Judges 9:51 mean?

But there was a strong tower within the city, and thither fled all the men and women, and all they of the city, and shut themselves in, and gat them up to the roof of the tower.

But there was a strong tower within the city, and thither fled all the men and women, and all they of the city, and shut it to them, and gat them up to the top of the tower.

But there was a strong tower within the city, and thither fled all the men and women, and all they of the city, and shut themselves in, and gat them up to the roof of the tower.

But in the middle of the town there was a strong tower, to which all the men and women of the town went in flight and, shutting themselves in, went up to the roof of the tower.

and a strong tower hath been in the midst of the city, and thither flee do all the men and the women, and all the masters of the city, and they shut <FI>it<Fi> behind them, and go up on the roof of the tower.

And there was in the midst of the city a high tower, to which both the men and the women were fled together, and all the princes of the city, and having shut and strongly barred the gate, they stood upon the battlements of the tower to defend themselves.

But there was a strong tower in the midst of the city, and thither fled all the men and women, all the citizens of the city; and they shut it behind them, and went up to the roof of the tower.