English Reference

Word

prototype

Phoneticspro·to·type, stress on the first syllable

US/ˈpɹoʊtəˌtaɪp/

UK/pɹˈəʊtəʊtˌaɪp/

Definitions

01early model

B2 · Upper Intermediate Countable noun

n. the first version of a product or machine that is built to see if an idea works.

n. an early sample, model, or release of a product built to test a concept or process.

“The engineers built a wooden prototype of the new car to test the seating.”

“The design team presented a functional prototype to the investors, demonstrating that the battery technology was viable for mass production.”

Antonyms

final productproduction model

02original pattern

C1 · Advanced Countable noun Academic

n. the original form of something that later versions are based on.

n. an original type, form, or instance that serves as a basis or standard for later stages.

“This 19th-century machine was the prototype for all modern printing presses.”

“Scholars argue that this early manuscript served as the prototype for the various regional versions of the myth found across the continent.”

Antonyms

03function declaration

C1 · Advanced Countable noun Computing Technical

n. a line of code that tells a computer the name and basic details of a function.

n. a declaration of a function that specifies the name, return type, and parameters, but omits the implementation body.

“You need to define the function prototype at the top of your code.”

“The compiler threw an error because the function call did not match the arguments specified in the prototype.”

04to build a model

B2 · Upper Intermediate

v. to make a first version of something to test it.

v. to create a preliminary version or model of a product or system.

“We need to prototype the app's interface before we start the actual coding.”

“The startup spent six months prototyping different wing shapes to maximise the drone's flight time.”

Synonyms

modeltest-build

Real-World Examples

“This prototype provides a way for researchers, city planners and policymakers to monitor emission levels and identify hotspots in Manhattan.”
Phys.org 20 Aug 2026
“She was awarded $12,500 to continue to develop her prototype.”
Smithsonian Magazine 6 Aug 2026

Etymology

From French prototype or Late Latin prototypon, from Ancient Greek πρωτότυπος (prōtótupos, “original; prototype”), from πρωτο- (prōto-, “first”) (from πρῶτος (prôtos, “first; earliest”)) + τῠ́πος (tŭ́pos, “blow, pressing; sort, type”) (from τύπτω (túptō, “to beat, strike”), from Proto-Indo-European *(s)tewp- (“to push; to stick”)). The word is analysable as proto- + -type.

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

Word family

NOUN

prototype(B2)

Related words

Domain

Computing

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.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL 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: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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English Reference