'Families' in the Bible

Then he brought the tribe of Benjamin near by its families, and the family of Matri was chosen by lot. At last Saul son of Kish was chosen by lot. But when they looked for him, he was nowhere to be found.

David settled with Achish in Gath, along with his men and their families. David had with him his two wives, Ahinoam the Jezreelite and Abigail the Carmelite, Nabal's widow.