duplex

[ doo-pleks, dyoo- ]

/ ˈdu plɛks, ˈdyu- /

Save This Word!

See synonyms for: duplex / duplexes / duplexity on Thesaurus.com

noun

duplex apartment.

duplex house.

paper or cardboard having different colors, finishes, or stocks on opposite sides.

Printing.

a method of reproducing an illustration using two halftone plates, one black and the other in a color.
a printing press equipped to print both sides of a sheet in one pass.

Genetics. a double-stranded region of DNA.

adjective

having two parts; double; twofold.

(of a machine) having two identical working units, operating together or independently, in a single framework or assembly.

pertaining to or noting a telecommunications system, as most telephone systems, permitting the simultaneous transmission of two messages in opposite directions over one channel.

verb (used with object)

to make duplex; make or change into a duplex: Many owners are duplexing their old houses for extra income.

QUIZ

WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?

Smoothly step over to these common grammar mistakes that trip many people up. Good luck!

Question 1 of 7

Fill in the blank: I can’t figure out _____ gave me this gift.

who

whom

TAKE THE QUIZ TO FIND OUT

Origin of duplex

1810–20; <Latin: twofold, double, equivalent to du(o) two + -plex-plex

OTHER WORDS FROM duplex

du·plex·i·ty, noun

Words nearby duplex

Dupleix, duple rhythm, Duplessis-Mornay, duplet, duple time, duplex, duplex apartment, duplex chain, duplexer, duplex house, duplex lock

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use duplex in a sentence

Finally, double-sided printing, or duplex printing, may also be available if you are looking for an added bonus feature in your best all-in-one printer.
Best all-in-one printer: Upgrade your home office with these multitasking machines|Carsen Joenk|February 8, 2021|Popular-Science
Tony Rodriguez lives in the second home of the duplex in Antioch that law enforcement searched Saturday.
Nashville Police Chief says Anthony Q. Warner is a person of interest in the Christmas morning explosion|Derek Hawkins, Michael Kranish, Simone Sebastian, Meryl Kornfield|December 27, 2020|Washington Post
In the brick vastness of the east Bronx, with its towering apartment blocks and modest duplexes, Bronxwood’s cream-and-beige exterior stood out.
“We Don’t Even Know Who Is Dead or Alive”: Trapped Inside an Assisted Living Facility During the Pandemic|by Ava Kofman|November 30, 2020|ProPublica
He told KPBS he supports allowing duplexes on any single-family lot in the city to expand the supply of housing, which Zosa opposes.
The Ultimate Guide to the Local Election|Voice of San Diego|October 19, 2020|Voice of San Diego

The ding of Kerwin’s cellphone notifications filled the three-bedroom duplex apartment she shared with the boyfriend who introduced her to heroin, his teenage son and her 9-year-old son.
She Was Afraid of Her Lawyer. Then the Text Messages Started.|by Samantha Hogan, The Maine Monitor|October 8, 2020|ProPublica
The Duplex Drive (called DD) was one: an amphibious conversion which could be fitted to a normal Sherman tank.
Blood in the Sand: When James Jones Wrote a Grunt’s View of D-Day|James Jones|November 15, 2014|DAILY BEAST
(Although Roberts also owns a duplex in Dodge City, he rents that out and does not live there).
There's No Place Like Home For Kansas Senator Pat Roberts|Ben Jacobs|May 12, 2014|DAILY BEAST
Now it is still warm, close to eighty degrees, as Oswald walks quickly away from the duplex.
The Man Oswald First Tried to Kill Before JFK|Bill Minutaglio, Steven L. Davis|October 3, 2013|DAILY BEAST
His family rents the lower duplex of a brownstone in Cobble Hill, where his two children share a room.
Buddy Can You Spare Ten Grand?|Noah Kristula-Green|February 29, 2012|DAILY BEAST
Convince your mistress living in the duplex on South Beach to leave the shades pulled—and to limit the bling.
Africa's WikiLeaks|Philip Shenon|August 12, 2010|DAILY BEAST
Strap a Duplex Reflector on to your back, and fasten a Hansom cab-lamp on to each knee.
Punch, Or The London Charivari, Vol. 99., December 27, 1890|Various
Duplex carburetors are necessary to secure the best results from eight- and twelve-cylinder V engines.
Aviation Engines|Victor Wilfred Pag
It will be seen that flexible metal pipes are used to convey the heated air to the air intakes of the duplex mixing chamber.
Aviation Engines|Victor Wilfred Pag
The Gyro-Duplex engine superseded this original design, and a small cross-section illustration of this is appended.
A History of Aeronautics|E. Charles Vivian
For absolute simplicity it would be difficult to excel the system adopted in the Jury Duplex camera.
Practical Cinematography and Its Applications|Frederick Arthur Ambrose Talbot

British Dictionary definitions for duplex

duplex

/ (ˈdjuːplɛks) /

noun

US and Canadian a duplex apartment or house

a double-stranded region in a nucleic acid molecule

adjective

having two parts

machinery having pairs of components of independent but identical function

permitting the transmission of simultaneous signals in both directions in a radio, telecommunications, or computer channel

Derived forms of duplex

duplexity, noun

Word Origin for duplex

C19: from Latin: twofold, from duo two + -plex -fold

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

duplex

Origin of duplex

OTHER WORDS FROM duplex

Words nearby duplex

Words related to duplex

How to use duplex in a sentence

British Dictionary definitions for duplex

Derived forms of duplex

Word Origin for duplex