house|hold1 W2S2 [ˈhaushəuld US -hould] n
[Date: 1300-1400; Origin: house + hold 'keeping, maintaining']
all the people who live together in one house
= ↑house
A growing number of households have at least one computer.
Families are classified by the occupation of the head of the household (=the person who earns the most money and is most respected in a house) .
household 2
household2 adj [only before noun]
1.) relating to looking after a house and the people in it
household goods/products/items etc
washing powder and other household products
household chores
2.) be a household name/word
to be very well known
Coca Cola is a household name around the world.

Dictionary of contemporary English. 2013.