different between twofold vs duplex

English

Alternative forms

• two-fold

Etymology

From Middle English twofold, from Old English tw?ofeald. Equivalent to two +? -fold; cognate to Icelandic tvöfalt and Dutch tweevoudig.

Adjective

twofold (not comparable)

1. Double; duplicate; multiplied by two.

   The wheat produced a twofold harvest.

2. Having two parts, especially two different parts.

   a twofold nature; a twofold sense; a twofold argument

   • 1874, Ernest Myers (transl.), The Extant Odes of Pindar, translated into English, Pythian Ode III, page 65.

     Had I but landed there and brought unto him a twofold joy, first golden health and next this my song of triumph to be a splendour in his Pythian crown […]

   • 2014, Robert K. Bolger, Scott Korb, "Gesturing Toward Reality: David Foster Wallace and Philosophy

     "Wallace's suggestion for overcoming the epistemological and solipsistic effects of innate selfishness is twofold."

Synonyms

• (double): double, duplicate; see also Thesaurus:twofold
• (having two parts): twin; see also Thesaurus:dual

Derived terms

• twofoldness

Translations

Adverb

twofold (not comparable)

1. In a double degree; doubly.

Synonyms

• double; see also Thesaurus:twice

Translations

References

• twofold in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• twofold in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.

English

Etymology

Borrowed from Latin duplex (“double, two-fold”), from duo (“two”) + plico (“fold together”); compare ????? (plék?, “twist, braid”).

Pronunciation

• (US) enPR: do?o'pl?ks, IPA^(key): /?dupl?ks/

Adjective

duplex (not comparable)

1. Double, made up of two parts.
2. (telecommunications) Bidirectional (in two directions).

   duplex telegraphy

3. (soil science) Having horizons with contrasting textures.
   • 1977, Australian Journal of Botany (volume 25, page 462)

     Soils are duplex, sandy and solodic. The dominant trees are the stringybark eucalypts […]

Antonyms

• (bidirectional): simplex (unidirectional)

Hyponyms

(bidirectional):

• full duplex
• half-duplex
• semiduplex

Derived terms

Related terms

Translations

Noun

duplex (plural duplexes)

1. (US) A house made up of two dwelling units.
2. (philately) A cancellation combining a numerical cancellation with a second mark showing time, date, and place of posting.
3. (juggling) A throwing motion where two balls are thrown with one hand at the same time.
4. (biochemistry) A double-stranded polynucleotide.
5. (geology) A system of multiple thrust faults bounded above and below by a roof thrust and floor thrust.
   • 1993, David J. Lidke, Jack Burton Epstein, Chester A. Wallace, U.S. Geological Survey Bulletin (page 16)

     In contrast, the folds in the overlying lithotectonic unit 4 are larger and are cut by a series of faults in a duplex.

   • 1995, Robert D. Hatcher, Structural Geology: Principles, Concepts, and Problems (page 211)

     It has been noted, using a combination of surface geologic and seismic reflection data, that a duplex, although formed in response to movement of a thrust sheet, frequently arches the thrust sheet as the duplex is built by duplication of rocks beneath it […]

Related terms

Translations

See also

Verb

duplex (third-person singular simple present duplexes, present participle duplexing, simple past and past participle duplexed)

1. To make duplex.
2. To make into a duplex.
3. (juggling) To make a series of duplex throws.

Related terms

French

Etymology

Borrowed from Latin duplex, see above.

Pronunciation

• IPA^(key): /dy.pl?ks/

Noun

duplex m (plural duplex)

1. a link between two points, such as a cable or a wire
2. duplex, maisonette (dwelling)

Derived terms

• duplexer

Further reading

• “duplex” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Italian

Etymology

Borrowed from Latin duplex.

Noun

duplex m (invariable)

1. party line

Latin

Etymology

From Proto-Italic *dwipleks, formed from duo (“two”) and plec-, from the root of plic? (“fold”); cf. also plect?, plexum.

Pronunciation

• (Classical) IPA^(key): /?du.pleks/, [?d??p???ks?] or IPA^(key): /?dup.leks/, [?d??p???ks?]
• (Ecclesiastical) IPA^(key): /?du.pleks/, [?d?u?pl?ks] or IPA^(key): /?dup.leks/, [?d?upl?ks]

Adjective

duplex (genitive duplicis, adverb dupliciter); third-declension one-termination adjective

1. twofold, double
2. bipartite, cloven
3. ambiguous

Declension

Third-declension one-termination adjective.

• Sg.Abl. sometimes duplice.

Descendants

• English: duplex
• French: duplex
• Galician: dobre (possibly)
• Italian: duplice, duplex
• Spanish: doble (possibly), dúplex

References

• duplex in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• duplex in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• duplex in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
• duplex in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
• Carl Meissner; Henry William Auden (1894) Latin Phrase-Book?^[1], London: Macmillan and Co.

Romanian

Etymology

From French duplex

Noun

duplex n (plural duplexuri)

1. duplex

Declension