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 of triplex

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

Along with its full-floor apartments, 660 Park Avenue is home to a 27-room maisonette triplex with its own entrance and address at 666 Park Avenue. — Mark David, Robb Report, 5 Oct. 2026

Through a series of renovations it’s morphed from a one-bedroom apartment to a sophisticated NoHo triplex with a rooftop chicken coop, adjusting to major life milestones, such as the birth of Scherieber’s third child, Hazel Bee. — Tanya Fevzi, CNN Money, 10 Sep. 2026

Adjective

The triplex penthouse is perched high above the Milan skyline, with landscaped terraces. — Hamish Bowles, Vogue, 20 Sep. 2026

In Rio’s famed Ipanema neighborhood, this triplex penthouse, which sits within a building designed by the late, great Oscar Niemeyer, stretches across three levels with postcard-ready views of both the ocean and Sugarloaf Mountain. — Natalie Hoberman, Forbes.com, 16 May 2026

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)