Dic: house (some of its meanings as a noun)

House [means:]

• the inmates of a house collectively; 
• a household or family; ....; 
• the members of a family, including ancestors and descendants

.... Dictionary of Collective Nouns and Group Terms

house: 

1. the people in a house. 
2. a family or dynasty.

... Collins Essential

house: 

• If he set his alarm clock for midnight, it would wake the whole house.     
• the House of Windsor.

1. N-SING : usu the N | You can refer to all the people who live together in a house as the house. (= household) 
2. N-COUNT : with supp | A house is a family which has been or will be important for many generations, especially the family of a king or queen.

.... Cobuild