primary social group.

parents and children.

people descended from a common ancestor.

a social unit living together.

(biology) a taxonomic group containing one or more genera.

an association of people who share common beliefs or activities.

  he wanted to have a good job before starting a family  

  his family has lived in Massachusetts since the Mayflower  

  he moved his family to Virginia  

  It was a good Christian household  

  I waited until the whole house was asleep  

  the teacher asked how many people made up his home  

  the family refused to accept his will  

  sharks belong to the fish family  

  the message was addressed not just to employees but to every member of the company family  

  the church welcomed new members into its fellowship