tri·​plex | \ ˈtri-ˌpleks How to pronounce triplex (audio) , ˈtrī- \

Definition of triplex

 (Entry 1 of 2)

: something (such as an apartment) that is triplex



Definition of triplex (Entry 2 of 2)

1 : threefold, triple triplex windows
2 : having three apartments, floors, or sections triplex buildings triplex apartments a triplex theater

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Synonyms for triplex

Synonyms: Adjective

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Examples of triplex in a Sentence

Adjective a triplex house that features a separate apartment on each floor
Recent Examples on the Web: Noun The historic brownstone had been reconfigured in the 1990s into a two-family unit, with the top three floors constituting a triplex, and the garden-level floor serving as a single apartment. Vanessa Lawrence, ELLE Decor, "Flashes of Red Electrify This Gray-Toned Harlem Townhouse," 28 Apr. 2021 Bobby Sager of Boston bought dozens of doors from the Chelsea Hotel to hang in his Boston triplex. Rima Suqi, WSJ, "When the Chelsea Hotel’s Doors Were Auctioned Off, These Homeowners Came Knocking," 18 Mar. 2021 The triplex is located at 823 Park Avenue, a prestigious condo building between 75th and 76th Streets, and is over 10,000 square feet, according to listing agent Maria Manuche of Compass. Katherine Clarke, WSJ, "Billionaire Hedge-Funder Joseph Edelman Asks $33.2 Million for Manhattan Penthouse," 10 Mar. 2021 The Nierenbergs paid $14 million for a triplex atop a boutique condominium at 66 East 11th Street. Vivian Marino, New York Times, "Sarah Jessica Parker and Matthew Broderick Help Kick Off the 2021 Market," 5 Feb. 2021 The new townhouse building, which would have been built on the back lot of an existing triplex, would have had a Portland Avenue address — 540 Portland Av. Shannon Prather Star Tribune, Star Tribune, "St. Paul preservation commission denies approval of triplex near Summit Avenue," 17 Dec. 2020 To build the triplex, property owner Sullivan Property Investments II needed six city variances from multiple boards waiving requirements regarding minimum lot size, setbacks and parking. Shannon Prather Star Tribune, Star Tribune, "St. Paul preservation commission denies approval of triplex near Summit Avenue," 17 Dec. 2020 Plans to squeeze a three-unit townhouse behind an existing triplex in St. Paul's Summit Hill neighborhood have pitted neighbors against the city — and each other. Shannon Prather, Star Tribune, "Summit Hill neighbors challenge exceptions for triplex developer," 1 Dec. 2020 Three negotiators, in plain clothes and ballistic vests, got onto the roof of an adjacent triplex of two-bedroom cottages. David Hernandez, San Diego Union-Tribune, "Inside a 19-hour standoff between San Diego police and a man on a rooftop," 1 Nov. 2020 Recent Examples on the Web: Adjective Offloading the triplex looks increasingly necessary. Andrew Khouri, Los Angeles Times, "Landlords are waiting for rent payments — and some can’t hold on much longer," 5 Apr. 2021 For years, the tower, which was home to Mr. Trump’s triplex penthouse, drew little notice. New York Times, "Trump Tower’s Neighbors Are Relieved as Barricades Come Down," 16 Feb. 2021 When Trump Tower was finished, his triplex apartment at the top was originally designed in a modern, minimalist fashion. Noah Bierman, Los Angeles Times, "New book by former Trump aide alleges early racist comments," 16 Oct. 2020 The project includes 287 homes in a mix of single family, cottage, townhome and triplex residences, officials said then, with roughly one-third of the development for open space and storm water retention. Amy Lavalley,, "Valparaiso path to be temporarily closed for stormwater project," 10 Sep. 2020 In April 2018, one person was killed in a fire on the 50th floor — just eight floors below Mr. Trump's triplex apartment. Caroline Linton, CBS News, "Lifelong New Yorker Trump moving primary residence to Florida," 31 Oct. 2019 The fancy rock, valued at $500,000, is just one of the perks in store for the new owner of the triplex residence atop the Regalia in Sunny Isles Beach. Jennifer Boehm,, "For $39M, Sunny Isles penthouse dazzles with glass elevator, chandelier, diamond keepsake," 27 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'triplex.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of triplex


1571, in the meaning defined above


1655, in the meaning defined at sense 1

History and Etymology for triplex


Latin, from tri- + -plex -fold — more at -fold

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Time Traveler for triplex

Time Traveler

The first known use of triplex was in 1571

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Statistics for triplex

Last Updated

4 May 2021

Cite this Entry

“Triplex.” Dictionary, Merriam-Webster, Accessed 14 May. 2021.

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English Language Learners Definition of triplex

US : a building that is divided into three separate homes

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