ground floor

noun

1. the floor of a building at or nearest to ground level.

2. Informal.,  an advantageous position or opportunity in a business matter, especially in a new enterprise.

   She took the job in the new company because she wanted to get in on the ground floor.

ground floor

noun

1. the floor of a building level or almost level with the ground

2. informal

   1. to enter a business, organization, etc, at the lowest level

   2. to be in a project, undertaking, etc, from its inception

Word History and Origins

Origin of ground floor¹

First recorded in 1595–1605