List of acronyms and initialisms

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This list contains acronyms, initialisms, and pseudo-blends.

For the purposes of this list:

acronym = an abbreviation pronounced as a series of constituent letters, e.g., SARS = severe acute respiratory syndrome
initialism = an abbreviation pronounced wholly or partly using the names of its constituent letters, e.g., CD = compact disc
pseudo-blend = an abbreviation whose extra or omitted letters means that it cannot stand as a true acronym, initialism, or portmanteau (a word formed by combining two or more words).

(a) = acronym in the example: SARS - (a) Severe acute respiratory syndrome

(i) = initialism in the example: CD - (i) Compact disc

(p) = pseudo-blend in the example: UNIFEM - (p) United Nations Development Fund for Women

(s) = symbol (none of the above, representing and pronounced as something else; for example: MHz - Megahertz)

Add new entries here or in the sub-pages

Please add your own entries, in this page or in the appropriate sub-page. Use a quasi-dictionary order, with lowercase treated the same as uppercase and ignoring non-alphanumeric characters (hyphens and such). This means that only alphanumeric characters have any significance in determining order, and that lowercase letters occupy the same ordering position as uppercase (in tie-breaker cases, list lower case first). For example: Ka appears before KA. (This differs from a strict ASCII ordering)

Because of the list's size, acronyms and initialisms beginning with certain characters appear in separate articles.

0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Top of page — See also — External links


0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Top of page — See also — External links

0–9

2D - (i) Two-dimensional
2.5D - (p) "Two-and-a-half-dee": two-dimensional computer graphics imitating 3D
2G - (i) Second-generation mobile (cellular, wireless) telephone system
2.5G - (p) Second-and-a-half-generation mobile telephone system
3D - (i) Three-dimensional
3G - (i) Third-generation mobile telephone system
3i - (i) Investors In Industry (venture capitalists)
3M - (i) Minnesota Mining and Manufacturing Company
4D - (i) Four-dimensional (usually three spatial plus one temporal dimension, sometimes 4 spatial ones)
4G - (i) Fourth-generation mobile telephone system
4GL - (i) Fourth-generation programming language
4WD - (i) Four Wheel Drive (cf. AWD)

A

See [[List of acronyms and initialisms: A]]

B

See [[List of acronyms and initialisms: B]]

C

See [[List of acronyms and initialisms: C]]

D

See [[List of acronyms and initialisms: D]]

E

See [[List of acronyms and initialisms: E]]

F

See [[List of acronyms and initialisms: F]]

G

See [[List of acronyms and initialisms: G]]

H

See [[List of acronyms and initialisms: H]]

I

See [[List of acronyms and initialisms: I]]

J

See [[List of acronyms and initialisms: J]]

K

See [[List of acronyms and initialisms: K]]

L

See [[List of acronyms and initialisms: L]]

M

See [[List of acronyms and initialisms: M]]

N

See [[List of acronyms and initialisms: N]]

O

See [[List of acronyms and initialisms: O]]

P

See [[List of acronyms and initialisms: P]]

Q

See [[List of acronyms and initialisms: Q]]

R

See [[List of acronyms and initialisms: R]]

S

See [[List of acronyms and initialisms: S]]

T

See [[List of acronyms and initialisms: T]]

U

See [[List of acronyms and initialisms: U]]

V

See [[List of acronyms and initialisms: V]]

W

See [[List of acronyms and initialisms: W]]

X

See [[List of acronyms and initialisms: X]]

Y

See [[List of acronyms and initialisms: Y]]

Z

See [[List of acronyms and initialisms: Z]]

: Top - 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

:	Top - 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

External links

[AbbreviationZ.com] directory of acronyms and abbreviations (over 330,000 entries)
[Acronym Finder] searchable database of acronyms and abbreviations (over 400,000 entries)
[Acronym Search] searchable database of acronyms and abbreviations (over 50,000 entries)
[Acronym Server] searchable database of acronyms and abbreviations (over 20,000 entries)
[Apronyms & Acronyms]

[IT Acronyms]
[NC3A list of acronyms]
[Need an apronym created?]
[Special Dictionary] Acronyms and abbreviation database with lookup function
[The Free Acronym Dictionary, by Farlex]
[Logistics World - U.S. Government and Military Acronyms]
[U.S. DoD Dictionary of Military and Associated Terms]
[Accounting Abbreviations and Accounting Acronyms]
[Financial Abbreviations and Financial Acronyms]

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