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

John now lies every day in a dark room on the first floor at his mother’s house.

From The Wall Street Journal

From the second floor where it is made, it runs along conveyor belts down to the first floor, bringing a a sweet, warm aroma to the building.

From BBC

Police believe the fire began after a battery exploded on the first floor before the flames spread upwards.

From BBC

The investor in the first floor, or tranche, would be exposed not to prepayments but to actual losses.

From Literature

People over 50 typically look at single-story homes, or at the very least ones with a primary bedroom on the first floor.

From MarketWatch