two-family house
nounUK /ˌtuː ˈfæmɪli haʊs/
US /ˌtuː ˈfæməli haʊs/
A building where two families live, each in their own part.
We live in a two-family house, and our neighbors live upstairs.
OTHER MEANINGS
2. A residential building divided into two separate living units.
The two-family house has separate entrances for each unit.
3. A property shared by two households, often with one unit rented out.
They bought a two-family house to rent the second floor.
4. A duplex-style home common in older neighborhoods.
Many two-family houses line the street in that part of town.