first floor

American  

noun

1. the ground floor of a building.

2. the floor above the ground floor of a building.

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first floor British  

noun

1. US and Canadian term: second floor.  the floor or storey of a building immediately above the ground floor

2. another term for ground floor

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Etymology

Origin of first floor

First recorded in 1655–65

Example Sentences

Folks living there can see live DJs, score priority festival tickets, and dance at a club on the first floor.

From The Wall Street Journal • May 19, 2026

But in 2020 a fire destroyed the roof and much of the first floor of the building.

From BBC • Apr. 7, 2026

A formal living room and dining room are on the first floor, as is the gorgeous kitchen with lots of shiny subway tile, marble counters, and an island with wine storage.

From MarketWatch • Mar. 25, 2026

McKinnon designs from her studio, which occupies the first floor of her apartment in West Hollywood.

From Los Angeles Times • Feb. 18, 2026

Ivy’s mother screamed her dad’s name from the first floor.

From "Ivy Aberdeen’s Letter to the World" by Ashley Herring Blake