duplex.
Double; made up of two parts.
Meaning & usage
Double; made up of two parts. Having two floors.
Double; made up of two parts. Having two units, divisions, suites, or apartments.
Double; made up of two parts. Of stainless steel: having a structure containing austenite and ferrite in roughly equal proportions.
Bidirectional (in two directions).
duplex telegraphy
Having horizons with contrasting textures.
Where this word comes from
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.
A house made up of two dwelling units.
A dwelling unit with two floors.
A cancellation combining a numerical cancellation with a second mark showing time, date, and place of posting.
A throwing motion where two balls are thrown with one hand at the same time.
A double-stranded polynucleotide.
A system of multiple thrust faults bounded above and below by a roof thrust and floor thrust.
Where this word comes from
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.
To make duplex.
To make into a duplex.
To make a series of duplex throws.
Where this word comes from
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.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.