ground level
Where basements start
Ground level is the height of the ground surface, used as a baseline for measuring elevation.
At ground level means on or near the earth's surface: The explosion occurred at ground level.
Figuratively, ground level describes basic or foundational stages: Let's start at ground level and work up.
Ground-level as an adjective modifies nouns directly: a ground-level apartment, ground-level ozone.
Building's lowest main level
- lobbyEntryway or influence-seeking
- entrancePoint of access
- foyerBuilding's entrance room
- storefrontRetail facade facing street
plaza · courtyard · threshold · foundation · basement · mezzanine · atrium · pedestrian access
Fundamental in nature
- fundamentalForming the base
- starting pointPlace of commencement
- grassrootsCommon people as political base
- baselineStandard for comparison
beginning · foundation · introductory · elementary · rudimentary · first principles · bottom-up · accessible
first floor
Building's lowest main level
storefront · plaza · courtyard · threshold · foundation · basement · mezzanine · atrium · pedestrian access
basic
Fundamental in nature
- fundamentalForming the base
- starting pointPlace of commencement
- grassrootsCommon people as political base
baseline · beginning · foundation · introductory · elementary · rudimentary · first principles · bottom-up · accessible
altitude
Measured height above reference
- heightVertical extent upward
- topographyPhysical feature mapping
- terrainLand's physical features
contour · grade · slope · incline · gradient · baseline · datum · benchmark
- building floorsfirst floor, second floor, third floor, top floor, basement
- Job Siteconstruction site, workplace, facility, building, office
- layerscanopy layer, paper sheets, veneer, laminate, cloud layer
- bottombottom line, bottom rung, underside, underneath, beneath
- levelstier, layer, floor, story, stratum
- camera angleshigh angle, low angle, bird's eye view, worm's eye view, overhead
ground levelrooftop
Building's top exterior surface
top floor · penthouse · upper floor · sky-high · upper level
level, ground, background, underground, grounds, playground, grounded, groundwork, grounding