List of acronyms and initialisms

0–9

* 1, = Onekama, Michigan
* 2D - (i) Two-dimensional
* 2.5D - (p) "Two-and-a-half-dee": two-dimensional computer graphics where some flat images lie in front of others
* 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)

See also

*Terms for market segments
*Backronym
*List of AAR reporting marks
*
*List of government and military acronyms
*List of medical abbreviations
*List of syllabic abbreviations
*List of U.S. Army acronyms and expressions
*
*
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External links

* [http://www.abbreviationz.com AbbreviationZ.com] directory of acronyms and abbreviations (over 330,000 entries)
* [http://www.acronymfinder.com Acronym Finder] searchable database of acronyms and abbreviations (over 575,000 entries)
* [http://www.acronymsearch.com Acronym Search] searchable database of acronyms and abbreviations (over 50,000 entries)
* [http://www.acronymslist.com Acronyms List] searchable database of acronyms and abbreviations (over 40,000 entries)
* [http://silmaril.ie/cgi-bin/uncgi/acronyms Acronym Server] searchable database of acronyms and abbreviations (over 20,000 entries)
* [http://www.all-acronyms.com All Acronyms] searchable database of acronyms and abbreviations (over 610,000 entries)
* [http://acronyms.co.nz Apronyms & Acronyms]
* [http://www.uq.net.au/~zzmgrinl/abbrev.html Abbreviations used in Genealogy]
* [http://www.ag.gov.au/www/agd/agd.nsf/Page/About_the_DepartmentAbbreviations_and_acronyms Australian Government abbreviations and acronyms]
* [http://library.wlu.ca/subject/gov/gdabbr.html Canadian Government abbreviations and acronyms]
* [http://www.computer-tips-und-tricks.de/vera-index.html IT Acronyms]
* [http://www.logisticsworld.com/acro.asp Logistics World - U.S. Government and Military Acronyms]
* [http://www.co.nz/cgi/forums/main.cgi?id=acronyms&user=&session= Need an apronym created?]
* [http://acronyms.special-dictionary.com/ Special Dictionary] Acronyms and abbreviation database with lookup function
* [http://acronyms.thefreedictionary.com/ The Free Acronym Dictionary, by Farlex]
* [http://www.dtic.mil/doctrine/jel/doddict/ U.S. DoD Dictionary of Military and Associated Terms]
* [http://usgovinfo.about.com/library/blacronyms.htm U.S. Government abbreviations and acronyms]