tri·​plex | \ˈtri-ˌpleks, 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

threefold, treble, triadic, tripartite, triple

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Examples of triplex in a Sentence


a triplex house that features a separate apartment on each floor

Recent Examples on the Web: Noun

In Clinton Hill, a two-family, 2,640-square-foot, 1880 brick house with a three-bedroom, two-bath triplex including an eat-in kitchen, office/laundry room and deck; a one-bedroom, one-bath, garden-level apartment; and an unfinished basement. New York Times, "Homes for Sale in Brooklyn and Manhattan," 5 July 2018 Located at Southeast 84th and Brooklyn Street, the community will be comprised of 10 duplex and triplex homes. Samantha Swindler,, "Women help build Habitat for Humanity homes in Southeast Portland," 12 May 2018 Homes on the site now include a single-family house, a duplex, a triplex, and a two-story, nine-unit apartment building, according to city staff. Lisa J. Huriash,, "Hallandale Beach may get 8-story medical building," 12 July 2018 For a child raised in a gilded triplex, Don seems to have gotten a disproportionate share of what pain there was to go around. Julia Ioffe, GQ, "The Real Story of Donald Trump Jr.," 21 June 2018 The department claimed Williams did not have the proper zoning or certificate of occupancy to run a triplex, and his second-floor apartment had a malfunctioning stove and lacked a carbon-monoxide detector. Claudia Vargas,, "A leaky ceiling, raccoons and cat poop: Ex-residents say Sheriff Williams was a 'slumlord'," 7 May 2018 The sprawling triplex penthouse spans approximately 5,700 square feet of interior space as well as roughly 1,522 square feet of terraces. Katherine Clarke, WSJ, "Penthouse in Gloria Vanderbilt’s Childhood Mansion Asks $30 Million," 6 June 2018 The triplex residence is located in the heart of the city's Media District and about a block away from Warner Brothers Studio. Neal J. Leitereg,, "‘Lethal Weapon’ star Damon Wayans snags triplex in Burbank’s Media District," 26 Apr. 2018 Others were newer small duplexes and triplexes that had little architectural or historical value. Steve Harrison, charlotteobserver, "Charlotte wants to bulldoze man's bungalow. He said it's unfair - and is fighting back. | Charlotte Observer," 24 May 2018

Recent Examples on the Web: Adjective

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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Statistics for triplex

Last Updated

19 Oct 2018

Look-up Popularity

Time Traveler for triplex

The first known use of triplex was in 1571

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More Definitions for triplex



English Language Learners Definition of triplex

: a building that is divided into three separate homes

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Comments on triplex

What made you want to look up triplex? Please tell us where you read or heard it (including the quote, if possible).


to express warning or disapproval

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