## Introduction

If you are working in the field of Computer Science, chances are you might have encountered quite a lot of technical terms and foreign names, such as *Dijkstra* and *Nyquist*. And chances are that you have learnt a good part of them solely from books. And there is nothing more embarrassing than being in an interview and mispronouncing some key term in your field of expertise! Learning the correct pronunciation is also an act of respect towards the many men and women which dedication has become the foundation of our daily work.

This page is a collection of some of the most used—and tricky to pronounce—terms and names from Computer Science, with a focus on Game Development and Computer Graphics. For each term, you can find the “most correct” pronunciation using the International Phonetic Alphabet. For many others, you will also find the respective phonetic respelling used by Wikipedia.

Before you keep reading, there are a few points to keep in mind. Many of the names in this list are in foreign languages, and they cannot be pronounced “the correct way” in English. They have, however, an Anglicised version that makes use of the closest sounds found in the English language. *Fourier*, for instance, is pronounced [fuʁje] in French, but is often approximated in English as /ˈfʊrieɪ,/ (FOOR-ee-ey). Yet, another commonly accepted variations is /ˈfʊriər/ (FOOR-ee-er). Many names and technical terms also variations between British English (🇬🇧) and American English (🇺🇸); effort was made to include both variants.

If you are interested to learn the pronunciation of technical terms, Computational Graphics Pronunciation Guide is another good resource. I hope you will find this collection useful, and feel free to get in touch to suggest a change or a new term to add.

## Technical Terms and Names

### Adobe

- (🇬🇧) /əˈdəʊ.bi/ uh-DOH-bee
- (🇺🇸) /əˈdoʊ.bi/

As in: Adobe Inc., an American multinational computer software company, developer of *Photoshop*, *Premiere Pro* and *After Effects*.

### albedo

- (🇬🇧) /alˈbiːdəʊ/

Source: Wikipedia.

### Bézier

- (🇬🇧) /ˈbɛz.i.eɪ/ BEH-zee-ay
- (🇫🇷) [bezje]

From Pierre Étienne Bézier, a French engineer and one of the founders of the fields of solid, geometric and physical modelling as well as in the field of representing curves.

Known for: Bézier curve

### Blinn-Phong

- (🇬🇧) /blɪn faŋ/

As in: Blinn-Phong reflection model, a shading model developed by Jim Blinn as an extension of the Phong reflection model.

James F. Blinn is an American computer scientist who first became widely known for his work as a computer graphics expert.

Bui Tuong Phong (Anglicised version of *Bùi Tường Phong*, (🇻🇳) [fawŋ͡m˧˧]), was a Vietnamese-born computer graphics researcher and pioneer. Many of his publications refer to him as *Bui* (his family name) although his work his remembered using is given name, *Phong*, as it is tradition in Vietnam.

Source: Wikipedia.

### bokeh

- (🇬🇧) /ˈboʊkə/ BOH-kə, /ˈboʊkeɪ/ BOH-kay /ˈbəʊkeɪ/
- (🇯🇵) [boke]

Source: Wikipedia

### boolean

- (🇬🇧) /ˈbuːlɪən/

From George Boole (/buːl/), a largely self-taught English mathematician, philosopher and logician, most of whose short career was spent as the first professor of mathematics at Queen’s College, Cork in Ireland.

### C++

- (🇬🇧) /siː plʌs plʌs/

In the C programming language, the ++ notation indicates an increment of one; this reflects that C++ is an evolution of C.

### C#

- (🇬🇧) /siː ʃɑːp/ see-sharp

The name C# is inspired by music notation, where whereby a sharp symbol (♯) indicates that the written note should be made a semitone higher in pitch. Due to technical limitations of display, the number sign (#) is used instead.

### cache

- (🇬🇧) /kaʃ/

### cartesian

- (🇬🇧) /kɑːˈtiːzɪən/
- (🇺🇸) /kɑːˈtiːʒ(ə)n/

The word *cartesian* from from Renatus Cartesius (/karˈte.si.us/), the Latinised name of French-born philosopher and Mathematician René Descartes [ʁəne dekaʁt].

- (🇬🇧) /ˈdeɪkɑːrt/
- (🇺🇸) /deɪˈkɑːrt/
- (🇫🇷) [ʁəne dekaʁt]

Known for: Catertesian coordinate system.

Source: Wikipedia, Wiktionary

### catenary

- (🇬🇧) /kəˈtiːnəri/

Plural form: **catenaries**

### data

- (🇬🇧) /ˈdeɪtə/
- (🇺🇸) /ˈdætə/

Singular form: **datum**

- (🇬🇧) /ˈdeɪtəm/
- (🇺🇸) /ˈdætəm/

Source: Wiktionary.

### Delaunay

- (🇬🇧) // deh-lah-NAY

From, Boris Nikolaevich Delaunay (or Delone) (Бори́с Никола́евич Делоне́), one of the first Russian mountain climbers and a Soviet/Russian mathematician,

The Cyrillic for “Delone” is pronounced the same way as “Delaunay”, which is why that spelling is often used instead.

Some resources incorrectly attributes the Delaunay triangulation to the French astronomer Charles-Eugene Delaunay.

Known for: Delaunay triangulation.

Source: Wikipedia, georeference

### Dijkstra

- (🇬🇧) /ˈdaɪkstɹə/
- (🇳🇱) [ˈdɛikstra]

From Edsger W. Dijkstra ([ˈɛtsxər ˈʋibə ˈdɛikstra]), a Dutch computer scientist, programmer, software engineer, systems scientist, science essayist, and pioneer in computing science.

Known for: Dijkstra’s algorithm.

Source: Wikipedia, Wiktionary

### Euclid

- (🇬🇧) /ˈjuːklɪd/
- (🇬🇷) [eu̯.kleː.dɛːs]

Adjective form: **euclidean**: /juːˈklɪd.i.ən/

Euclid is the anglicised version of the Ancient Greek name Εὐκλείδης (Eukleídēs).

From Euclid, s a Greek mathematician, often referred to as the “founder of geometry”.

Known for: Euclidean geometry.

Source: Wikipedia, Wiktionary.

### Euler

- (🇬🇧) /ˈɔɪlər/ OY-lər
- (🇩🇪) [ˈɔʏlɐ]

Incorrect pronunciation: /ˈjuːlər/ YOU-lər

Adjective form: **eulerian**: /ɔɪləɹi.ən/

From Leonhard Euler (/leːɔnhart/), a Swiss mathematician, physicist, astronomer, geographer, logician and engineer who made important and influential discoveries in many branches of mathematics.

Known for: Euler angles.

Source: Wikipedia, Wiktionary.

### Fourier

- (🇬🇧) /ˈfʊrieɪ,/ foor-ee-ey
- (🇫🇷) [fuʁje]

From Jean-Baptiste Joseph Fourier, a French mathematician and physicist born in Auxerre.

Known for: Fourier series and Fourier Transform.

Source: Wikipedia.

### Fresnel

- (🇬🇧) /freɪˈnɛl/
*fray-NEL* - (🇫🇷) [fʁɛ.nɛl]

From Augustin-Jean Fresnel, a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light.

Known for: Fresnel Reflectance.

Source: Wikipedia, Wiktionary.

### frustum

- (🇬🇧) /ˈfruːs.tum/
- (🇺🇸) /ˈfrʌstəm/

Incorrect spelling: frustrum

Plural form: **frusta** or **frustums**

Source, Wiktionary

### Gauss

- (🇬🇧) /ɡaʊs/
- (🇩🇪) [ˈɡaʊs]

Adjective form: **gaussian**: /ˈɡaʊs.i.ən/

From Johann Carl Friedrich Gauss (Gauß), a German mathematician and physicist who made significant contributions to many fields in mathematics and science.

Known for: Gaussian distribution.

Source: Wikipedia, Wiktionary.

### GIF

- (🇬🇧) /dʒɪf/ JIF

Alternative pronunciation: /ɡɪf/ GIF

Steve Wilhite, the inventor of the GIF format in 1987, says that it was originally pronounced with /dʒ/ and that such pronunciation is “correct”, but the pronunciation with /ɡ/ is also widespread.

Source: Wiktionary, BBC

### Gouraud

- (🇬🇧) /ɡuːˈɹəʊ/ goo-RAW

From Henry Gouraud, a French computer scientist.

Known for: Gouraud shading.

Source: Wikipedia, Wiktionary.

### Hermite

- (🇬🇧) /er’mit/
- (🇫🇷) [ɛʁˈmit]

From Charles Hermite, a French mathematician who did research concerning number theory, quadratic forms, invariant theory, orthogonal polynomials, elliptic functions, and algebra.

Known for: Hermite interpolation.

Source: Wikipedia.

### Lambert

- (🇺🇸) /ˈlæmbɚt/
- (🇩🇪) [ˈlambɛʁt]
- (🇫🇷) [lɑ̃.bɛʁ]

Adjective form: *lambertian*: /ˈlæmbɚti.ən/

From Johann Heinrich Lambert (Jean-Henri Lambert, in French), a Swiss polymath who made important contributions to the subjects of mathematics, physics (particularly optics), philosophy, astronomy and map projections.

Known for: Lambertian reflectance.

Source: Wikipedia, Wiktionary.

### Laplace

- (🇬🇧) /ləˈplɑːs/
- (🇫🇷) [laplas]

Adjective form: **laplacian**

From Pierre-Simon, marquis de Laplace [pjɛʁ simɔ̃ laplas], a French scholar and polymath whose work was important to the development of engineering, mathematics, statistics, physics, astronomy, and philosophy.

### logarithm

- (🇬🇧) /ˈlɑ.ɡə.ɹɪ.ð(ə)m/

Adjective form: **logarithmic**

### ludum dare

- (🇬🇧) /luːdumː ˈdarɛ/ loo-dum-DAH-ray
- (🇬🇧) /luːdumː ˈ/dɛː/
- (latin) [luːdũː ˈdarɛ]

From Latin: *to give a game*.

### matrix

- (🇬🇧) /ˈmeɪtrɪks/
- (🇺🇸) /ˈmætɹɪks/

Plural form: **matrices **/ˈmeɪtɹɪsiːz/

### Mie

- (🇬🇧) /miː/
- (🇩🇪) [miː]

From Gustav Adolf Feodor Wilhelm Ludwig Mie ([miː]), a German physicist.

Known for: Mie Scattering.

See: Rayleigh.

### moiré

- (🇬🇧) /ˈmwɑːreɪ/ MWAR-ay
- (🇺🇸) /mwɑːˈreɪ/ mwar-AY
- (🇫🇷) [mwaʁe]

The term originates from moire (moiré in its French adjectival form), a type of textile, traditionally of silk but now also of cotton or synthetic fiber, with a rippled or “watered” appearance.

Source: Wikipedia

### Navier-Stokes

- (🇬🇧) /nævˈjeɪ stoʊks/

As in: Navier-Stokes equations, a set of partial differential equations which describe the motion of viscous fluid substances. Named after French engineer and physicist Claude-Louis Navier (born *Claude Louis Marie Henri Navier* [klod lwi maʁi ɑ̃ʁi navje]) and Anglo-Irish physicist and mathematician George Gabriel Stokes (formally *Sir George Gabriel Stokes, 1st Baronet*).

### Nyquist

- (🇺🇸) /ˈnaɪkwɪst/
- (🇸🇪) [ˈnŷːkvɪst]

From Harry Nyquist, a Swedish electronic engineer who made important contributions to communication theory.

Source: Wikipedia, Wiktionary.

### pivot

- (🇬🇧) /ˈpɪvət/

Source: Wiktionary.

### Poisson

- (🇫🇷) /pwa.sɔ̃/

Adjective form: **poissonian**

### Pythagoras

- (🇬🇧) /paɪˈθæɡ.əɹ.əs/
- (🇺🇸) /pɪˈθæɡ.əɹ.əs/

Adjective form: **Pythagorean**

- (🇬🇧) /pʌɪˌθaɡəˈriːən/
- (🇺🇸) /pɪˈθæɡəˈriːən/

Pythagoras is the anglicised version of the Ancient Greek name Πῡθαγόρᾱς (Pūthagórās).

From Pythagoras of Samos (c. 570 – c. 495 BC), an ancient Ionian Greek philosopher.

Known for: Pythagorean theorem.

Source: Wikipedia.

### quaternion

- (🇬🇧) /kwəˈtəːni.ən/

Incorrect spelling: *quarternion*

Source: Wiktionary.

### Rayleigh

- (🇬🇧) /ˈreɪli/ RAY-lee

From John William Strutt, 3rd Baron Rayleigh (12 November 1842 – 30 June 1919), a British scientist who made extensive contributions to both theoretical and experimental physics.

Known for: Rayleigh scattering.

See: Mie.

### Softimage

- (🇬🇧) /sɒftɪˈmɑːʒ/

From Autodesk Softimage (or simply Softimage) a discontinued 3D computer graphics application, for producing 3D computer graphics, 3D modeling, and computer animation.

### tessellation

- (🇬🇧) /ˌtɛsəˈleɪʃ(ə)n/

Incorrect spelling: *tassellation*, *tasselation*

### torus

- (🇬🇧) /ˈtɔːrəs/

Plural form: **tori***,* **toruses **(less used)

### trigonometry

- (🇬🇧) /ˌtrɪɡəˈnɒmɪtri/

Adjective form: **trigonometric**

See: table of trigonometric functions

### Verlet

- (🇬🇧) /vəːleɪ/ vurr-LAY
- (🇫🇷) [vɛʁˈlɛ]

From Loup Verlet ([lu vɛʁˈlɛ]), a French physicist who pioneered the computer simulation of molecular dynamics models.

Known for: Verlet integration

### vertex

- (🇬🇧) /ˈvəːtɛks/

Plural form: **vertices **/ˈvəːtɪsiːs/

### vignette

- (🇬🇧) /viːˈnjɛt/
- (🇫🇷) [vi.ɲɛt]

Plural form: **vignettes**

### von Neumann

- (🇬🇧) /vɒn ˈnɔɪmən/ VON NOY-mən
- (🇭🇺) [ˈnɒjmɒn]

Incorrect pronunciation: NEW-man

From John von Neumann (Neumann János Lajos), a Hungarian-American mathematician, physicist, computer scientist, engineer and polymath.

Jon von Neumann was born in Hungary as Neumann János Lajos. He later Germanised his name by adding the *von* to indicate nobility.

*von* is typically written lowercase; it can be capitalised as *Von* when used at the beginning of a sentence.

Source: Wikipedia.

## Trigonometry

Function | (🇬🇧) | (🇺🇸) |
---|---|---|

sin sine | /sɪn/ /saɪn/ | – |

cos cosing | /kɒs/ /ˈkəʊ.saɪn/ | /kɑs/ /ˈkoʊ.saɪn/ |

tan tangent | /tæn/ /ˈtæn.dʒənt/ | – |

csc cosecant | – /ˈkəʊ.siːkənt/ | – /ˈkoʊˌsiːkənt/ |

sec secant | /sɛk/ /ˈsiːkənt/ | – |

cot cotangent | /kɒt/ /ˈkəʊˌtændʒənt/ | /kɑt/ /ˈkoʊˌtændʒənt/ |

sinh hyperbolic sine | /ʃaɪn/, /sɪntʃ/, /saɪnˈeɪtʃ/ /ˌhʌɪpəˈbɑlɪk saɪn/ | – |

cosh hyperbolic cosine | /kɒʃ/, /kɒˈseɪtʃ/ /ˌhʌɪpəˈbɑlɪk ˈkəʊ.siːkənt/ | /kɑʃ/, /kɑˈseɪtʃ/ /ˌhʌɪpəˈbɑlɪk ˈkoʊˌsiːkənt/ |

tanh hyperbolic tangent | /tæntʃ/, /tænˈeɪtʃ/ /ˌhʌɪpəˈbɑlɪk ˈtændʒənt/ | – |

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It’s a really good idea but it’s quite useless without the sounds :/

That’s why I added the IPA pronunciation for each one!

Sure, the thing no one but speech therapist masters ? 😉