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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.

Carey, 57, purchased the expansive dwelling in June 1999, when she snapped up two separate units in the same building for a combined $9 million, before combining them into the stunning triplex that exists today.

From MarketWatch • Apr. 13, 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

The new triplex method accomplishes a reduction in false negatives by using a "clever" quality control.

From Science Daily • Mar. 26, 2024

The last titles to screen at the triplex were Sony Pictures’ superhero film “Madame Web,” Paramount Pictures’ Bob Marley biopic “One Love” and Focus Features’ quirky horror flick “Lisa Frankenstein.”

From Los Angeles Times • Mar. 1, 2024

Their apartment is a middle unit in a triplex.

From "All the Light We Cannot See" by Anthony Doerr