Definition of party wall in English:
A wall common to two adjoining buildings or rooms.
- In fact the premises formed one building with a party wall (providing two semi-detached houses) but which were not divided in any way in the loft space.
- In that case there were two adjoining properties with a party wall.
- Because the buildings are fairly old there are no party walls in the roof void, which is why it spread quickly.
Definition of party wall in:
- US English dictionary