n.
 (pl. families)
   - 
[treated as sing. or pl.]
 a group consisting of two parents and their children living together as a unit. 
▸a group of people related by blood or marriage.
 ▸the children of a person or couple.
 - all the descendants of a common ancestor.
 - a group of related things. 
▸Biology  a principal taxonomic category ranking above genus and below order.
 ▸all the languages ultimately derived from a particular early language, regarded as a group.
 
adj.
 suitable for children as well as adults.
 
  Phrase
  
    
      - in the family way
 informal pregnant. 
    
   
  Derivative
  
    
      - familial
  
/fəˈmɪljəl/
 adj. 
    
   
  Etymology
  ME: from L. familia ‘household servants, family’, from famulus ‘servant’.