groundfloor
nounUK /ˈɡraʊnd flɔː/
US /ˈɡraʊnd flɔːr/
The groundfloor is the first level of a building, right at street level.
Our apartment is on the groundfloor, so we don't need to use the elevator.
OTHER MEANINGS
2. The lowest level of a building that is at or near the level of the ground.
The shop occupies the groundfloor of the old hotel.
3. A starting or basic level of something, such as a company or organization.
She joined the company at the groundfloor and worked her way up.
4. The floor of a building that is directly above the basement.
The groundfloor houses the reception area and mailroom.