triplex

1 of 2

noun

tri·​plex ˈtri-ˌpleks  ˈtrī- 

: something (such as an apartment) that is triplex

triplex

2 of 2

adjective

1

: threefold, triple

triplex windows

2

: having three apartments, floors, or sections

triplex buildings

triplex apartments

a triplex theater

Synonyms

Adjective

• triple

Examples of triplex in a Sentence

Adjective

a triplex house that features a separate apartment on each floor

Recent Examples on the Web

Noun

Last year, for example, a seven-bedroom triplex hit the market for $30 million, and a few months later, a nearby penthouse listed for $25 million, with all the proceeds going toward philanthropic efforts in Africa. —Tori Latham, Robb Report, 23 Sep. 2025

Electric triplex and walk-behind mowers keep the greens tournament ready without fuel or noise pollution. —Erik Matuszewski, Forbes.com, 18 Sep. 2025

Adjective

Designer and writer David Netto says the handful that remain include the triplex penthouse at 625 Park Avenue, the former home of Helena Rubinstein, and John D. Rockefeller’s former 37-room duplex at 740 Park Avenue, now owned by Blackstone CEO Steve Schwarzman. —Robert Khederian, Curbed, 17 Sep. 2025

Clifton, who was allegedly planning to build a triplex there, had allegedly pledged to invest $50,000 of his own into the project, court documents read. —Ilana Arougheti, Kansas City Star, 16 Sep. 2025

Word History

Etymology

Adjective

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

First Known Use

Noun

1571, in the meaning defined above

Adjective

1655, in the meaning defined at sense 1

Rhymes for triplex

• annex
• annexe
• apex
• aztecs
• carex
• codecs
• codex
• convex
• cusecs
• duplex
• execs
• fedex

Kids Definition

triplex

1 of 2 adjective

tri·​plex ˈtrip-ˌleks  ˈtrī-ˌpleks 

: triple entry 3 sense 2

triplex

2 of 2 noun

: something that has three parts (as an apartment with three floors)