Family (noun)

1. A group of people related to one another by blood or marriage.
2. A group of people living together in one household.
3. A group of things related to one another by common characteristics or by being part of a larger group.
4. A group of people who are related to each other and who share a common ancestor.
5. A group of animals or plants that are related to each other in a scientific classification.

Origin:

Late middle english: from old french familie, from latin familia "household, servants, family", from famulus "servant", from fama "reputation".

Examples:

1. He is part of a big family.
2. She is the head of the family.
3. I come from a small family.
4. They are a happy family.
5. We are a large family.