triplex

UK: /ˈtrɪplɛks/

US: /ˈtrɪplɛks, ˈtraɪplɛks/

US: (trip′leks, trī′pleks)

WordReference Random House Learner's Dictionary of American English © 2025

tri•plex /ˈtrɪplɛks, ˈtraɪplɛks/   adj. 

1. threefold;
   triple.

n. [countable]

2. something triple.
3. an apartment having three floors:
   They examined a triplex, but the rent was too high.
4. Cinema, Show Business a multiplex of three theaters or movie houses.

See -plic-.

WordReference Random House Unabridged Dictionary of American English © 2025

tri•plex  (trip′leks, trī′pleks), adj. 

1. threefold;
   triple.

n. 

2. something triple.
3. Music and Dance See triple time. 
4. an apartment having three floors.
5. Cinema, Show Business a multiplex of three theaters or movie houses.

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

Collins Concise English Dictionary © HarperCollins Publishers::

triplex / ˈtrɪplɛks/ adjective

1. a less common word for triple

Etymology: 17th Century: from Latin: threefold, from tri- + -plex -fold

Collins Concise English Dictionary © HarperCollins Publishers::

Triplex / ˈtrɪplɛks/ noun

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