first floor
Americannoun
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the ground floor of a building.
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the floor above the ground floor of a building.
noun
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US and Canadian term: second floor. the floor or storey of a building immediately above the ground floor
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another term for ground floor
Etymology
Origin of first floor
First recorded in 1655–65
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Wilber Urbina Garcia tossed and turned in bed 23 on the first floor at the Adelanto ICE Detention Center.
From Los Angeles Times ● Jul. 10, 2026
By dawn, it had completely submerged the first floor of their homes.
From BBC ● Jul. 8, 2026
The first floor has items from the young Obama's life, including a cast of his handprint.
From Barron's ● Jun. 4, 2026
Meanwhile, we stay on the first floor with the baby while he practices upstairs on the second floor.
From MarketWatch ● May 4, 2026
If Mama was home, I would take the comics down to the first floor and hide them far underneath the stairs.
From "Bad Boy" by Walter Dean Myers
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
