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  • triplex
    triplex
    adjective
    threefold; triple.
  • Triplex
    Triplex
    noun
    a laminated safety glass, as used in car windows
Synonyms

triplex

American  
[trip-leks, trahy-pleks] / ˈtrɪp lɛks, ˈtraɪ plɛks /

adjective

  1. threefold; triple.


noun

  1. something triple.

  2. Music. triple time.

  3. an apartment having three floors.

  4. a multiplex of three theaters or movie houses.

Triplex 1 British  
/ ˈtrɪplɛks /

noun

  1. a laminated safety glass, as used in car windows

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

triplex 2 British  
/ ˈtrɪplɛks /

adjective

  1. a less common word for triple

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of triplex

1595–1605; < Latin triplex (stem triplic- ) threefold, equivalent to tri- tri- + -plex -plex

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.

See Examples For:

Described in its listing as a “modernist masterpiece,” the triplex unit spans exactly 11,000 square feet and features an incredible double-height living room with walls of windows that overlook the Hudson River.

From MarketWatch Apr. 6, 2026

He has also bought a triplex, part of which he rents out to provide a source of income, and secured his green card for permanent US residency.

From Barron's Dec. 20, 2025

And only 30 ticks tested positive using the Luminex method, demonstrating that the triplex technique has a higher sensitivity to detect the virus RNA.

From Science Daily Mar. 26, 2024

During public comments, Iran Daniel, an Altadena resident who co-owns a rent-stabilized triplex in West Adams, urged council members to allow the maximum proposed rent hike.

From Los Angeles Times Nov. 14, 2023

“No. No. Hunter has a job at the rendering plant. That’s why we’re here. It’s completely different from a triplex gathering hole. Totally.”

From "Landscape with Invisible Hand" by M.T. Anderson

“He was aware that the Triplex apartment in which he, a real estate mogul and self-identified expert, resided for decades was not 30,000 square feet, but actually 10,996 square feet,” the judge said.

From Seattle Times Feb. 17, 2024

Triplex and Duplex safety glass appear in almost every expensive car and in the windshields of cheaper makes.

From Time Magazine Archive

Your article . . . reviewing the annual New York Automobile Show mentions the fact that most high priced and many medium priced cars are using either Duplex or Triplex or non-shatterable glass.

From Time Magazine Archive

The large Triplex plant at Clifton, N. J., will be resold to Pittsburgh Plate Glass Co. which will be given manufacturing licenses, will share Triplex's big Ford windshield contract with Libbey-Owens-Ford.

From Time Magazine Archive

His attitude toward death is shown here, and is further shown in his little paper AEs Triplex, in which he successfully vindicates his generation from the charge of cowardice in the face of death.

From The Sea Fogs by Stevenson, Robert Louis

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