ground floor

US /ˈɡraʊnd flɔːr/
UK /ˈɡraʊnd flɔːr/
"ground floor" picture
1.

parter

the floor of a building that is at the same level as the ground outside

:
The reception area is on the ground floor.
Recepcja znajduje się na parterze.
Our apartment is on the ground floor, so it's easy to access.
Nasze mieszkanie jest na parterze, więc jest łatwo dostępne.