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

---

triplex ² British  

/ ˈtrɪplɛks /

adjective

1. a less common word for triple

---

Etymology

Origin of triplex

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

Example Sentences

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

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

Their apartment is a middle unit in a triplex.

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