English Reference

Word

splice

US/ˈspɫaɪs/

UK/splˈaɪs/

Definitions

01to join ropes or cables

C1 · Advanced Technical

v. to join two pieces of rope or wire by weaving the ends together.

v. to unite two ropes or cables by interweaving the strands of the ends. Transitive; often implies a permanent and strong connection.

“The sailor showed us how to splice the two ropes together so they wouldn't slip.”

“The technician had to splice the damaged fibre-optic cables to restore the internet connection to the building.”

Usage

Often used with the particle 'together'.

Synonyms

joininterweaveconnect

Antonyms

02to edit film or audio

C1 · Advanced Technical

v. to join two pieces of film or tape together to make one long piece.

v. to join two lengths of film, magnetic tape, or digital media by overlapping or butting the ends.

“The editor had to splice several scenes together to finish the movie.”

“Before digital editing became standard, filmmakers had to physically cut and splice celluloid strips to create a final cut.”

Synonyms

Antonyms

03genetics

C2 · Proficiency Science Technical

v. to join different pieces of DNA or RNA together.

v. to remove intron sequences from pre-messenger RNA and join exons together, or to join genetic material from different sources.

“Scientists can splice genes from one plant into another to make it stronger.”

“The process of alternative splicing allows a single gene to code for multiple proteins by varying which exons are joined.”

Synonyms

recombine

04to get married

C2 · Proficiency Informal · Slang · British English

v. to get married to someone.

v. to unite two people in marriage. Usually used in the passive voice as 'to get spliced'.

“Did you hear that Jim and Sarah finally got spliced last weekend?”

“After a decade of dating, the couple decided it was finally time to get spliced in a quiet ceremony by the coast.”

Teaching tip

This is a humorous, old-fashioned slang term; it is rarely used in formal contexts.

Synonyms

Antonyms

05a junction

C1 · Advanced Countable noun Technical

n. the place where two things, like ropes or wires, have been joined together.

n. a physical junction or connection made by splicing ropes, wires, or other materials.

“The electrician checked the splice in the wire to make sure it was safe.”

“The structural integrity of the bridge depended on the quality of each cable splice.”

Antonyms

Real-World Examples

“It argued that the BBC spliced scenes from Trump’s 6 January 2021 speech so that it appeared Trump directly urged his supporters to attack the US Capitol building.”
The Guardian 14 Aug 2026
“Through these spliced timelines, it becomes clear that Sophia, compelled by her supernatural gift, possesses little agency.”
The Guardian 27 Aug 2026

Etymology

Circa 1525, borrowed from Middle Dutch splissen (Modern Dutch splitsen); akin to Middle Dutch splitten (“to split”), German spleißen (“to split, splice”), Spliss (“split ends, hair breakage”), French épisser (also from Dutch). The Dutch word originally referred only to the fraying of the ropes' ends but was then also used for the entire process of fraying and retying; hence the peculiar semantic development from “split” to “join”. The same development occurred in German.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

VERB

splice(C1)

Idioms

Domain

Nautical

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Occasional
Level
C1 · Advanced
Updated

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English Reference