duplex apartment

American  

noun

1. an apartment with rooms on two connected floors.

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duplex apartment British  

noun

1. an apartment on two floors

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Etymology

Origin of duplex apartment

An Americanism dating back to 1935–40

Example Sentences

Billionaire Citadel founder and CEO Ken Griffin has reportedly expanded his enormous international property portfolio with the addition of a $38 million duplex apartment inside a storied New York City apartment building.

From MarketWatch • Apr. 22, 2026

Arlene and Robert Grafilo fled to Centre 200 with their children, ages 3 and 10, after a big tree toppled on their duplex apartment.

From Seattle Times • Sep. 24, 2022

In early March, I defended my PhD dissertation to a crowd of professors, and, days later, we hosted a baby shower in our cramped duplex apartment.

From Salon • Mar. 27, 2022

The fire started on the second and third floors of the building in a duplex apartment in the Tremont section of the Bronx, the New York Times reported.

From Fox News • Jan. 9, 2022

And in time, we had six children; moved from the shotgun to a duplex apartment to a house, and lived the dream—high school football on Friday nights.

From "Friday Night Lights: A Town, A Team, And A Dream" by H.G. Bissinger