home,house,family,household这组词都有“家”的意思
home 指家庭成员在一起生活的地方。如：家，家乡，本国
His home is in London.
他的家在伦敦。
They have a comfortable home.
他们有一个舒适的小家庭。
home 可用作副词。意思是：到家，回到家里，回国。如：
Is he home yet?
他已经回到家了吗？
May I see you home?
我可以送你回家吗？
house 主要指建筑物，住宅
New houses are going up everythere.
到处都在兴建新的住宅。
He stayed at his friend's house.
他(暂时)住在朋友家里。
family 指家中成员，或子女
Almost every family in the village has a man in the army.
这个村子里几乎每一家都有一个男子当兵。
Tom is the eldest of the family.
汤姆是子女中最大的一个。
They have married for two years,but have not any family yet.
他们已经结婚两年了，但是还没有子女。
household 指家中成员，包括主仆，或指一户人家
This is a respectable household.
这是一户有声望的人家。
The peasant household has become prosperous through working hard.
这户农家已经通过勤劳变得兴旺发达了。
room
vi.
同住，寄宿
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