splice
Americanverb (used with object)
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to join together or unite (two ropes or parts of a rope) by the interweaving of strands.
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to unite (timbers, spars, or the like) by overlapping and binding their ends.
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to unite (film, magnetic tape, or the like) by butting and cementing.
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to join or unite.
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Genetics. to join (segments of DNA or RNA) together.
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Informal. to unite in marriage.
They'll be spliced in June.
noun
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a joining of two ropes or parts of a rope by splicing.
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the union or junction made by splicing.
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a joining or junction of two pieces of timber, spar, etc., by overlapping and fastening the ends.
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a joining of film, electromagnetic tape, or the like.
idioms
verb
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to join (two ropes) by intertwining the strands
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to join up the trimmed ends of (two pieces of wire, film, magnetic tape, etc) with solder or an adhesive material
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to join (timbers) by overlapping and binding or bolting the ends together
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informal (passive) to enter into marriage
the couple got spliced last Saturday
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nautical history to issue and partake of an extra allocation of alcoholic spirits
noun
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a join made by splicing
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the place where such a join occurs
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the wedge-shaped end of a cricket-bat handle or similar instrument that fits into the blade
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To join together genes or gene fragments or insert them into a cell or other structure, such as a virus, by means of enzymes. In genetic engineering, scientists splice together genetic material to produce new genes or to alter a genetic structure. In messenger RNA, the introns are removed, and exons are spliced together to yield the final messenger RNA that is translated.
Other Word Forms
Derived Forms
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splicernoun
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respliceverb (used with object)
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underspliceverb (used with object)
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spliceableadjective
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unsplicedadjective
Inflected Forms
Nouns
Participles
Conjugated Forms
Present
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splicesimple
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splicessimple
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have splicedperfect
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has splicedperfect
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am splicingprogressive
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are splicingprogressive
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is splicingprogressive
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have been splicingperfect progressive
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has been splicingperfect progressive
Past
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splicedsimple
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had splicedperfect
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was splicingprogressive
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were splicingprogressive
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had been splicingperfect progressive
Future
Etymology
Origin of splice
1515–25; < earlier Dutch splissen (now splitsen )
Explanation
As noun and verb, splice refers to the overlapping or interweaving of two ends of something to create the strongest possible attachment. The earliest records of the word splice are from the early 16th century, when it was borrowed from the Middle Dutch verb splissen, used by sailors for joining ropes end to end by interweaving their strands. In 1912, the infant motion-picture industry took over the word splice to refer to the cutting and joining of film in the editing process. In 1975, scientists found they could alter genes by cutting and adding chunks of DNA, creating the science of gene splicing.
Vocabulary lists containing splice
All the Pretty Horses
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The Martian
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Stories of Ourselves
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Four years ago, he left cell tower work to manage fiber crews, then saw how much this particular specialty makes—sometimes upward of $30 per splice for projects like this—and moved into that role.
From The Wall Street Journal ● Feb. 1, 2026
When a gene is copied into a raw RNA transcript, it usually can be processed in different ways to form distinct splice variants or isoforms; thus, a single gene may produce several different proteins.
From Science Daily ● Apr. 9, 2024
Rather than stingily splice the historical sources, as the Carralero court did, those judges drew upon the historical principles that justified locational restrictions.
From Slate ● Jan. 3, 2024
The local fishermen too said they were particularly wary of these boats as they are more prone to sinking and often splice their nets.
From BBC ● Aug. 29, 2023
For a short time, I wondered how to splice the second battery's leads into the main power supply.
From "The Martian" by Andy Weir
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Daniel Mason splices together different narrative strands to create a single story connecting its successive inhabitants.
From The Wall Street Journal ● Jun. 10, 2026
Another early highlight, Reliquia, chops and splices a chamber quartet into unrecognisable electronic patterns, as Rosalía reconciles herself to the idea that she loves too hard, and locates the beauty in that vulnerability.
From BBC ● Nov. 6, 2025
The active splicing factor splices out the inhibitory exon in the transcription factor, which turns on the genes that produce collagen.
From Science Daily ● Apr. 26, 2024
On every film I’ve ever done, including “Oppenheimer,” I first showed it to the studio on cut and copy, taped together, splices and everything.
From Seattle Times ● Feb. 6, 2024
Werner rewinds the resistance track and splices the wires and plugs in the radio.
From "All the Light We Cannot See" by Anthony Doerr
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The video is a compilation of clips of charismatic Christian prophet Kim Clement, spliced together from 2007 appearances in California and Arizona.
From Salon ● Apr. 4, 2026
The product wasn’t profitable, and every user who spliced themselves into a World War II newsreel or Hollywood chase scene drew down a finite resource.
From The Wall Street Journal ● Mar. 30, 2026
He requested to know if the BBC had provided either video or audio of the spliced comments to either the PBS television channel or NPR radio in the United States.
From Barron's ● Nov. 20, 2025
Kogonada earned the industry’s attention as a cineaste who spliced together video supercuts illustrating the techniques of auteurs like Ozu, Kubrick and Wes Anderson.
From Los Angeles Times ● Sep. 19, 2025
A few minutes later, he found a series of correspondence spliced together into one file that almost made his heart stop.The icy chills from before turned into a cold sweat.
From "The Kill Order (Maze Runner, Book Four; Origin)" by James Dashner
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Far from simply pressing a button, film projectionists must actively guide a screening, threading and splicing reels and closely monitoring for mechanical issues.
From Los Angeles Times ● Jul. 17, 2026
Some are using genetic testing and exploring gene splicing to produce children with desired traits.
From The Wall Street Journal ● Dec. 23, 2025
Trying out mixes, considering hundreds of audio samples, scooping out tonal frequencies, splicing together temporary music cues, listening and listening again.
From Los Angeles Times ● Dec. 8, 2025
He said the error did not amount to "innocent splicing".
From BBC ● Nov. 11, 2025
“I suppose you thought you could hide,” she said to the kitchen table, where Mia had been carefully splicing a photograph of a dog and a man together.
From "Little Fires Everywhere" by Celeste Ng
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.