слова home и house абсолютные синонимы или есть смысловые оттенки в них ?

Home-дом, родные стены
House-здание, строение

A house is not a home.
House, as well as food, water and clothes is essential for man`s life. But a human being differs from animals; he wants to have not just a shelter but a place to satisfy all his necessities: to sleep, to eat, to hide himself from bad weather, to raise children, to worship God, etc. So he wants not just a house but a home. There are a lot of proverbs supporting the importance of home to a person: East or west, home is best; There is no place like home; My house is my fortress; and others. Such sayings exist in any language and in any culture.
A home may be a house, but a house isn't always a home.
A house is a structure, but a home is the people who live in the house and make it a safe and pleasant place to be.
You can live in a beautiful house, but if you have no one to love and share it with, then it's just a plain house no matter how fancy it is.
A home can be anywhere you live - your home may be a mobile home, or a motor caravan, or an igloo.
But a house is a physical structure with walls, windows, a roof and a door. A house is a building which accommodates you. It is just a building and you do not necessarily care about it.
A home is a place you love, where you feel you belong and where you feel happy to be there.
It takes a lot of living in a house to turn it into a home.
Have you ever heard the saying “Home is where the heart is.”?

Если совсем грубо, то дом, который твой, и в котором ны находишься – home. А дом, который ты видишь снаружи – house.