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

See Examples For:

first floor

The Smiths have a primary-bedroom suite on the first floor.

From The Wall Street Journal ● Jul. 17, 2026

"The fire service had to come and get my grandmother down with a crane," Estevez told AFP in the tiny two-roomed apartment that she, her husband and children have moved into on the first floor.

From Barron's ● Jun. 17, 2026

"It has its own pond and a lift from the very bottom floor that takes you up to the first floor," she added.

From BBC ● May 30, 2026

Meanwhile, we stay on the first floor with the baby while he practices upstairs on the second floor.

From MarketWatch ● May 4, 2026

But there was also a party to plan, which meant the grand ballroom had to be refreshed and prepared as well, not to mention an extra cleaning for the other rooms of the first floor.

From "Ophie's Ghosts" by Justina Ireland