A numeronym is a word, usually an
abbreviation
An abbreviation () is a shortened form of a word or phrase, by any method including shortening (linguistics), shortening, contraction (grammar), contraction, initialism (which includes acronym), or crasis. An abbreviation may be a shortened for ...
, composed partially or wholly of numerals. The term can be used to describe several different number-based constructs, but it most commonly refers to a contraction in which all letters between the first and last of a word are replaced with the number of omitted letters (for example, "i18n" for "internationalization").
According to Anne H. Soukhanov, editor of the ''
Microsoft Encarta College Dictionary'', it originally referred to
phonewords – words spelled by the letters of keys of a telephone pad.
A numeronym can also be called an ''alphanumeric acronym'' or ''alphanumeric abbreviation''.
Types
Homophones
A number may be substituted into a word where its pronunciation matches that of the omitted letters. For example, "
K9" is pronounced "kay-nine", which sounds like "canine" (relating to
dogs).
Examples of numeronyms based on homophones include:
*
sk8r:
skater
*
B4: before
*
l8r: later; L8R, also sometimes abbreviated as L8ER, is commonly used in chat rooms and other text based communications as a way of
saying goodbye.
*
G2G: "good to go", "got to go", or "get together", also found as "GTG".
*
gr8: "great"
*
P2P: "
pay-to-play" or "
peer-to-peer
Peer-to-peer (P2P) computing or networking is a distributed application architecture that partitions tasks or workloads between peers. Peers are equally privileged, equipotent participants in the network, forming a peer-to-peer network of Node ...
"
*
F2P: "
free-to-play"
*
T2UL/T2YL: "talk to you later", also found as "TTYL".
*
B2B: "
business-to-business"
*
B2C: "business-to-consumer"
Numerical contractions

Alternatively, letters between the first and last letters of a word may be replaced by the number of letters omitted. For example, the word "
internationalization" can be abbreviated by replacing the eighteen middle letters ("nternationalizatio") with "18", leaving "i18n". Sometimes the last letter is also counted and omitted. These word shortenings are sometimes called ''numerical contractions''.
According to Tex Texin, the first numeronym of this kind was "S12n", the
electronic mail
Electronic mail (usually shortened to email; alternatively hyphenated e-mail) is a method of transmitting and receiving Digital media, digital messages using electronics, electronic devices over a computer network. It was conceived in the ...
account name given to
Digital Equipment Corporation
Digital Equipment Corporation (DEC ), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s. The company was co-founded by Ken Olsen and Harlan Anderson in 1957. Olsen was president until ...
(DEC) employee Jan Scherpenhuizen by a
system administrator
An IT administrator, system administrator, sysadmin, or admin is a person who is responsible for the upkeep, configuration, and reliable operation of computer systems, especially multi-user computers, such as Server (computing), servers. The ...
because his
surname
In many societies, a surname, family name, or last name is the mostly hereditary portion of one's personal name that indicates one's family. It is typically combined with a given name to form the full name of a person, although several give ...
was too long to be an account name. The use of such numeronyms became part of DEC corporate culture.
Examples of numerical contractions include:
*
g11n – globalization
* i14y –
interoperability
*
a11y – accessibility
*
m12n – modularization
* p13n –
personalization
Personalization (broadly known as customization) consists of tailoring a service or product to accommodate specific individuals. It is sometimes tied to groups or segments of individuals. Personalization involves collecting data on individuals, ...
* s5n – shorten
* l10n –
localization
* i18n –
internationalization
* a16z –
Andreessen Horowitz
* K8s –
Kubernetes
* o11y –
observability
* c12s –
communications
* c14n –
canonicalization
* E15 – The
Eyjafjallajökull
Eyjafjallajökull (; "glacier of (the mountain) Eyjafjöll"), sometimes referred to by the numeronym E15, is one of the smaller ice caps of Iceland, north of Skógar and west of Mýrdalsjökull. The ice cap covers the caldera of a volcano wi ...
volcano in Iceland
* o11n – orchestration
Purely numeric
Some numeronyms are composed entirely of numbers, such as "
212" for "
New Yorker", "
4-1-1" for "information", "
9-1-1" for "help", "
101" for "basic introduction to a subject", and "
420" for "Cannabis". Words of this type have existed for decades, including those in
10-code, which has been in use since before
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. Chapter or title numbers of some jurisdictions' statutes have become numeronyms, for example
5150 and
187 from California's penal code. Largely because the production of many American movies and television programs are based in California, usage of these terms has spread beyond its original location and user population.
Examples of purely numeric words include:
* 64 –
Tiananmen Square protests of 1989
* 69 –
69 (sex position)
* 143 – I love you
*
187 – slang for "murder", based on section 187 of the California Penal Code
* 421 - Fortune
* 520 – I love you (one of many numeronyms used in
Chinese Internet Slang)
*
8:46 – The length of time associated with the
murder of George Floyd (May 25, 2020 in Minneapolis).
* 2137 - Time of day at which
John Paul II died
* 1312 -
ACAB (All Cops Are Bastards)
Repeated letters
A number may also denote how many times the character before or after it is repeated. This is typically used to represent a name or phrase in which several consecutive words start with the same letter, as in
W3 (
World Wide Web
The World Wide Web (WWW or simply the Web) is an information system that enables Content (media), content sharing over the Internet through user-friendly ways meant to appeal to users beyond Information technology, IT specialists and hobbyis ...
) or
W3C
The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web. Founded in 1994 by Tim Berners-Lee, the consortium is made up of member organizations that maintain full-time staff working together in ...
(
World Wide Web Consortium
The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web. Founded in 1994 by Tim Berners-Lee, the consortium is made up of member organizations that maintain full-time staff working together in ...
).
Amazon Web Services
Amazon Web Services, Inc. (AWS) is a subsidiary of Amazon.com, Amazon that provides Software as a service, on-demand cloud computing computing platform, platforms and Application programming interface, APIs to individuals, companies, and gover ...
uses this in naming some of its popular services such as S3 (Simple Storage Service) and EC2 (Elastic Cloud Compute)
SI prefixes
Numeronyms can also make use of SI prefixes, as are commonly used to abbreviate long numbers (e.g. "1k" for or "1M" for ).
Examples of numeronyms using SI prefixes include
* Y2K problem –
Year 2000 problem
The term year 2000 problem, or simply Y2K, refers to potential computer errors related to the Time formatting and storage bugs, formatting and storage of calendar data for dates in and after the year 2000. Many Computer program, programs repr ...
* Y2K38 problem –
Year 2038 problem
*
C10k problem – Ten-thousand concurrent connections problem
See also
*
Leet or leetspeak
*
Nominal number
*
-onym
References
{{Reflist
Abbreviations
Numbers