'Household' in the Bible

Now these are the names of the sons of Israel, who came into Egypt (every man and his household came with Jacob):

Speak to all the congregation of Israel, saying, 'On the tenth day of this month, they shall take to them every man a lamb, according to their fathers' houses, a lamb for a household;

and if the household is too little for a lamb, then he and his neighbor next to his house shall take one according to the number of the souls; according to what everyone can eat you shall make your count for the lamb.