'Dead' in the Bible

And Naomi said to her two daughters-in-law, Go back to your mothers' houses: may the Lord be good to you as you have been good to the dead and to me:

And Naomi said to her daughter-in-law, May the blessing of the Lord, who has at all times been kind to the living and to the dead, be on him. And Naomi said to her, The man is of our family, one of our near relations.

Then Boaz said, On the day when you take this field, you will have to take with it Ruth, the Moabitess, the wife of the dead, so that you may keep the name of the dead living in his heritage.

And, further, I have taken Ruth, the Moabitess, who was the wife of Mahlon, to be my wife, to keep the name of the dead man living in his heritage, so that his name may not be cut off from among his countrymen, and from the memory of his town: you are witnesses this day.