The "First Floor" typically refers to the level of a building that is directly above the ground floor. In many countries, this is the floor where you enter the building, often containing common areas like lobbies, reception desks, or shops. It serves as a primary access point for visitors and residents. In architectural terms, the first floor can vary in design and function. It may include offices, retail spaces, or residential units, depending on the building's purpose. The layout is often designed to facilitate movement and accessibility, making it an important aspect of urban planning and building design.