Added 9 October 2026
duplex
/ˈdu.plɛks/ noun
Latin root: duplex Wiktionary
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about duplex at Wordnik → Where our words come from →
verb
- Change into a duplex.
adjective
-
(used technically of a device or process) having two parts.
a duplex transaction
-
Allowing communication in opposite directions simultaneously.
duplex system
Origin
PIE word *dwóh₁ Borrowed from Latin duplex (“double, two-fold”), from duo (“two”) + plico (“fold together”); compare the roots of διπλόος (diplóos, “double”); compare also πλέκω (plékō, “twist, braid”). By surface analysis, duo- + -plex.
From Wiktionary, via Kaikki.org (CC BY-SA)