/ˈhaʊsˌhəʊld/
adjective
Someone or something that is a household name or word is very well known. 家喻户晓的
household bills/chores/goods (= connected with looking after a house and the people living in it)
家庭账单／杂务／用品
noun
all the people living together in a house or flat/apartment 一家人；家庭；同住一所（或一套）房子的人
Most households now own at least one car.
大多数家庭现在至少有一辆汽车。
low-income/one-parent, etc. households
低收入、单亲等家庭
the head of the household
户主