'Daughters in law' in the Bible

Then she arose with her daughters-in-law so that she might return from the fields of Moab. For she had heard in the fields of Moab how Jehovah had visited His people in giving them bread.

And she went out of the place where she was, and her two daughters-in-law with her, and they went on the way to return to the land of Judah.

And Naomi said to her two daughters-in-law, Go, return each one to her mother's house. May Jehovah deal kindly with you, as you have dealt with the dead and with me.