ground floor

Definitions of ground floor
  1. noun
    the floor of a building that is at or nearest to the level of the ground around the building
    synonyms: first floor, ground level
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    type of:
    floor, level, storey, story
    a structure consisting of a room or set of rooms at a single position along a vertical scale
  2. noun
    becoming part of a venture at the beginning (regarded as position of advantage)
    “he got in on the ground floor
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    type of:
    the event consisting of the start of something
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