(Main list of acronyms)

__NOTOC__

  • L – (s) Fifty (in Roman numerals) – (i) Label – Lap – Large – Laser (US military aircraft basic mission designation) – Latin – Left – (s) Litre – (i) Low (transmissions)

LA

  • l8r, g8r – (a) later, gator
  • la – (s) Latin language (ISO 639-1 code)
  • La – (s) Lanthanum
  • LA
  • (s) Laos (FIPS 10-4 country code; ISO 3166 digram)
  • Louisiana (postal symbol)
  • (i) Los Angeles
  • LAAS
  • (i) Local Area Augmentation System
  • Los Angeles Astronomical Society
  • LAB – (a) Logistics Assault Base
  • LabVIEW – (p) Laboratory Virtual Instrumentation Engineering Workbench
  • LACMA – (a/i) Los Angeles County Museum of Art
  • LAD – (a) Laser Aiming Device
  • LADW – (i) Local Air Defence Warning
  • LAESI – (i) Local Authority & Emergency Service Information
  • LAK – (s) Laotian kip (ISO 4217 currency code)
  • LAMP – (multiple meanings)
  • LAN – (a) Local Area Network
  • LANL – (i) Los Alamos National Laboratory
  • lao – (s) Lao language (ISO 639-2 code)
  • LAO – (s) Laos (ISO 3166 trigram)
  • LAPD – (i) Los Angeles Police Department
  • LAR
  • Light Armoured Reconnaissance
  • Logistics Assistance Representative
  • LARC – (a) Livermore Advanced Research Computer (cf. LLNL)
  • LARP – (a) Live-Action Role-Playing
  • LAS – (s) McCarran International Airport (Las Vegas, Nevada)
  • Laser – (a) Light Amplification by Stimulated Emission of Radiation (cf. Maser)
  • lat – (s) Latin language (ISO 639-2 code)
  • LAT
  • (i/a) Lowest Astronomical Tide (nautical charts)
  • Licensed Athletic Trainer (used in many of the United States; see www.oata.org)
  • LATA – (i) Local Access Transport Area
  • LATCH – (p) Lower Anchors and Tethers for Children (U.S. standard for attachment points for child safety seats in passenger cars)
  • lav – (s) Latvian language (ISO 639-2 code)
  • LAV
  • (a) Land Assault Vehicle
  • Light Armoured Vehicle
  • Lymphadenopathy-Associated Virus
  • LAW] – (a) Light Antitank Weapon
  • LAX
  • (s) Los Angeles International Airport
  • (i) The Latin American Xchange (professional wrestling)

LB

  • lb
  • (s) pound (Latin librum)
  • Luxembourgish language (ISO 639-1 code)
  • LB – (s) Lebanon (ISO 3166 digram)
  • LBH
  • (i) Light Battlefield Helicopter
  • Lyman-Birge-Hopfield bands
  • LBJ
  • (i) Lady Bird Johnson
  • LeBron James
  • Light Bulb Joke
  • Little Beagle Johnson (the dog owned by Lyndon and Lady Bird Johnson)
  • Lyndon Baines Johnson
  • LBN – (s) Lebanon (ISO 3166 trigram)
  • LBNL – (i) Lawrence Berkeley National Laboratory
  • LBP – (s) Lebanese pound (ISO 4217 currency code)
  • LBR – (s) Liberia (ISO 3166 trigram)
  • LBS – (i) Location-based service
  • lbs – (s) pounds (plural form of lb, see above)
  • LBT – (i) Large Binocular Telescope
  • LBW – (i) Leg Before Wicket
  • LBY – (s) Libya (ISO 3166 trigram)

LC

  • LC – (i) Line of Contact – (s) Saint Lucia (ISO 3166 digram)
  • LC2IEDM or LC<sup>2</sup>IEDM – (i) Land C2IEDM (q.v.)
  • LCA
  • (s) Saint Lucia (ISO 3166 trigram)
  • Larnaca International Airport
  • LCC – (i) Land Component Commander
  • LCCP – (i) Light Contingency Communications Package
  • LCD – (i) Liquid Crystal Display
  • LCE – (i) Leaving Certificate Examination – Load Carrying Equipment – London Commodity Exchange
  • LCM – (i) Least/Lowest Common Multiple
  • LCol – (s) Lieutenant-Colonel (Canada, UK)
  • LCS - League of Legends Championship Series

LD

  • LD
  • (i) Laser Designator
  • Limited Deployment
  • Line of Departure
  • LDA – (i) Lateral Drift Apparatus (paratroops)
  • LDAP – (a/i) Lightweight Directory Access Protocol (pronounced "ell-dap")
  • LDC – (i) Lesser Developing/Developed Country
  • LDE - (s) Tarbes–Lourdes–Pyrénées Airport (IATA code)
  • LDL – (i) Low-Density Lipoprotein
  • LDMOS – (i/a) Laterally diffused MOS transistor ("ell-dee-moss")
  • LDS
  • (i) Latter-day Saint (also "Latter Day Saint"); also used as an abbreviation by the Church of Jesus Christ of Latter-day Saints
  • Liberal Democracy of Slovenia
  • LDV – (i) Local Defence Volunteers (British Home Guard)
  • LDW – Lane Departure Warning (ADAS)

LE

  • LE – (s) Lebanon (FIPS 10-4 country code)
  • LEC – (i) Local Exchange Carrier
  • LED – (i) Light-Emitting Diode
  • Legs – (a) level emotion gad speed
  • LEGAD – (p) Legal Advice
  • LEMOSS – (p) Long-Endurance MObile Submarine Simulator
  • LEN – (i) Large Extension Node
  • LEO – (a) Low Earth orbit
  • LEP – (a) Large Electron-Positron collider
  • LER – (i) Loss-Exchange Ratio
  • LEU – (i) Low-Enriched Uranium

LF

  • LF – (i) Low Frequency
  • LFG - Let's F***ing Go! (Internet slang)
  • LFO – (i) Low Frequency Oscillation / Oscillator
  • LFTR – (i) Liquid fluoride thorium reactor

LG

  • lg – (s) Luganda (ISO 639-1 code)
  • LG – (s) Latvia (FIPS 10-4 country code)
  • LGB
  • (i) Lesbian, Gay, Bisexual
  • Laser-guided bomb, self-explanatory
  • LGBT – (i) Lesbian, Gay, Bisexual, Transgender
  • LGBTI - Lesbian, Gay, Bi, Transgender, Intersex
  • LGBTQ - Lesbian, Gay, Bi, Transgender, Queer
  • LGBTQIA - the A standing for "asexual", "aromantic", or "agender"
  • LGLO – (i) Love God, Love Others
  • LGLO's – (i) Latino Greek Lettered Organizations
  • LGM
  • (i) Little Green Men
  • (s) Land-based Guided Missile, US military designation for guided missiles launched from ground silos, mostly used to talk about ICBMs like LGM-30 Minuteman
  • LGS – (i) Landsat Ground Station

LH

  • LH
  • (s) Lithuania (FIPS 10-4 country code)
  • (i) Luteinising Hormone
  • Lufthansa (IATA airline code)
  • LHC – (i) Large Hadron Collider
  • LHD
  • (i) litterarum humaniorum doctor (Latin, "doctor of humane letters (humanities)")
  • Left-Hand Drive (automobile)
  • (s) Landing Helicopter Dock (US Navy hull classification symbol)
  • LHS – (i) Left Hand Side

LI

  • li – (s) Limburgish language (ISO 639-1 code)
  • Li – (s) Lithium
  • LI – (s) Fifty-one (in Roman numerals) – (s) Liberia (FIPS 10-4 country code) – Liechtenstein (ISO 3166 digram)
  • Libor – (p) London Interbank Offered Rate
  • LIBS – (a) Laser Induced Breakdown Spectroscopy
  • LIE – (s) Liechtenstein (ISO 3166 trigram)
  • LIFO – (a) Last In, First Out
  • LIGO – (a) Laser Interferometer Gravitational-Wave Observatory
  • LIJ – (i) Los Ingobernables de Japón (Spanish, "The Ungovernables of Japan"), Japanese professional wrestling stable
  • lim – (s) Limburgish language (ISO 639-2 code)
  • lin – (s) Lingala language (ISO 639-2 code)
  • LINEAR – (a) Lincoln Near-Earth Asteroid Research
  • LiP, LIP – (s) Lithium ion polymer battery
  • LISA – (a) Laser Interferometer Space Antenna
  • lit – (s) Lithuanian language (ISO 639-2 code)
  • LITAS – (a) Low Intensity Two Colour Approach System (aviation)
  • LIVE – (a) Liquid Inertial Vibration Eliminator

LJ

  • LJ
  • (i) La Jolla
  • Larry Johnson (both the American football and basketball players of that name)
  • LaserJet (HP printer brand)
  • Library Journal
  • Linux Journal
  • LiveJournal
  • Ljubljana
  • Lord Justice of Appeal
  • (s) Sierra National Airlines (IATA code)
  • LJJ – (i) Lord Justices of Appeal

LK

  • LK – (s) Sri Lanka (ISO 3166 digram)
  • LKA – (s) Sri Lanka (ISO 3166 trigram)
  • LKL – (i) Lietuvos krepšinio lyga (Lithuanian, "Lithuanian Basketball League")
  • LKR – (s) Sri Lanka rupee (ISO 4217 currency code)
  • LKR4 – (s) Linkwitz-Riley 4th order (audio crossover type)

LL

  • l. l. – loco laudato (Latin: "in the place quoted")
  • LL
  • (i) Land Line (telephone)
  • (i) Last Log
  • (i) Late Latin
  • (s) Laws, esp. both Laws
  • (i) Left Limit
  • (i) Lex Luthor (Superman character)
  • (i) Light Line
  • (i) Limited Liability
  • (s) Lines** (i) Linked List
  • (i) Little League
  • (i) Low Latin
  • (p) Liberland
  • LLAD – (i) Low Level Air Defence
  • LLB – (i) Legum Baccalaureus (Latin: Bachelor of Laws)
  • LLC – (i) Limited Liability Company
  • LLGC – (i) Llyfrgell Genedlaethol Cymru (National Library of Wales) – London Lesbian and Gay Centre
  • LLLTV – (i) Low-Light Level Television
  • LLNL – (i) Lawrence Livermore National Laboratory
  • LLP – (i) Limited Liability Partnership
  • LLTI – (i) Limiting Long-Term Illness – Long Lead Time Item
  • LLTR – (i) Low-Level Transit Route

LM

  • LMAO – (i) Laughing My Ass Off (Internet shorthand)
  • LMFAO – (i) Laughing My F**king Ass Off (Internet shorthand, electro-hop duo)
  • LMB – (i) Lick My Balls
  • LMN – (a/i) Lifetime Movie Network
  • LMS – (i) London Mathematical Society – London, Midland and Scottish (Railway)
  • LMS – (i) Like My Status (Internet shorthand)
  • LMV - () Light Motor Vehicle

LN

  • ln
  • (s) Lingala language (ISO 639-1 code)
  • Natural logarithm
  • LNB
  • (i) Liga Nacional de Básquet (Rioplatense Spanish, "National Basketball League"; top Argentine league)<!--In most of the Spanish-speaking world, the word for basketball is "baloncesto", but not in Argentina.-->
  • Ligue Nationale de Basketball (French, "National Basketball League"; the organization that operates France's top two leagues, and the unrelated top league of Switzerland)
  • Low-Noise Block (Satellite dish)
  • LNER
  • (i) London and North Eastern Railway railway operator from 1923 until 1947 in the United Kingdom
  • (i) London North Eastern Railway railway operator established in 2018 in the United Kingdom
  • LNG – (i) Liquefied Natural Gas
  • LNO – (p) Liaison Officer
  • LNR – (i) Ligue Nationale de Rugby (French, "National Rugby League")

LO

  • lo – (s) Lao language (ISO 639-1 code)
  • LO – (s) Slovakia (FIPS 10-4 country code)
  • LOA – (i) Limit Of Advance
  • LOC
  • (a/i) Level of Operational Capability
  • Limited Operational Capability
  • Lines Of Code
  • Lines Of Communication
  • see entry
  • LOD
  • (i) Legion of Doom, referring to any of the following:
  • A group of DC Comics supervillains
  • A hacker group
  • A group of Philadelphia Flyers ice hockey players in the 1990s
  • The Road Warriors, a professional wrestling tag team that used the name "Legion of Doom" when performing in the WWF/WWE
  • Limit of Detection – see Detection limit
  • LoD – (i) Lines of Development (UK)
  • LOFAR – (p) Low Frequency Analyzer and Recorder / Low Frequency Analysis and Recording in sonar systems
  • LOGPAC – (p) Logistics Package
  • LOL – (i) Laughing Out Loud (Internet shorthand)
  • LOMEZ – (p) Low Altitude Missile Engagement Zone
  • LONEOS – (a) Lowell Observatory Near-Earth-Object Search
  • LOOGY – (p/a) Lefty One-Out GuY, a sometimes pejorative nickname for the left-handed specialist in baseball
  • loq – (p) loquitur (Latin, "(s) he speaks")
  • LORTID – (p) LOng Range Target IDentification
  • LORAN – (p) LOng RAnge Navigation
  • LOS – (i) Line Of Sight
  • LOSAT – (i) Line-Of-Sight Anti-Tank (missile)
  • LOTA – (i) Licentiate of the Orthodontic Technicians Association
  • LOTIS – (a) Livermore Optical Transient Imaging System
  • LOTR or LotR – (a) Lord of the Rings
  • LOTS – (a) Logistics Over-The-Shore

LP

  • LP
  • (i) Linkin Park
  • Linkup Point
  • Listening Post
  • Long Playing (record)
  • Louisiana Pacific (cf. LP Field, a former name of the sports venue now known as Nissan Stadium)
  • LPC – (i) Linear Predictive Coding
  • LPD
  • (i) Landing Platform Dock (Navy hull classification)
  • Low Probability of Detection
  • LPG – (i) Liquefied Petroleum Gas (cf. LNG)
  • LPI – (i) Low Probability of Intercept
  • LPS
  • (i) Landsat Processing System
  • (p) LipoPolySaccharide

LQ

  • LQ – (s) Palmyra Atoll (FIPS 10-4 territory code)

LR

  • Lr – (s) Lawrencium
  • LR – (s) Liberia (ISO 3166 digram)
  • LRAD – (i) Long Range Acoustic Device ("ell-rad")
  • LRAS3 or LRAS<sup>3</sup> – (i) Long Range Advanced Scout Surveillance System
  • LR-ATGW – (i) Long-Range Anti-Tank Guided Weapon
  • LRC – (i) Logistics Readiness Center
  • LRD – (s) Liberian dollar (ISO 4217 currency code)
  • LRF – (p) Laser rangefinder – (i) Low Readiness Forces
  • LRGW – (i) Long-Range Guided Weapon
  • LRICBM – (i) Limited Range ICBM
  • LRIP – (i) Low Rate Initial Production
  • LRP – (i) Logistics Release Point
  • LRPE – (i) Long-Range Planning Element
  • LRS – (i) Long Range Surveillance
  • LRU – (i) Line-Replaceable Unit

LS

  • L.S. – (i) Lectori Salutem (Latin, "greetings to the reader"; when the name of the reader is not known in advance)
  • LS
  • (i) Landing Support
  • (s) Lesotho (ISO 3166 digram)
  • Liechtenstein (FIPS 10-4 country code)
  • (i) locus sigilli (Latin, "place of the seal")
  • LSAT – (i) Law School Admission Test (often pronounced as "el-SAT")
  • LSD
  • (i) Landing Ship, Dock (Navy hull classification)
  • librae, solidii, denarii (Latin: Pounds, shillings and pence)
  • lyserg-saüre-dietylamid (German "lysergic acid diethylamide")
  • LSE
  • (i) Least Squares Estimate/Error
  • London School of Economics
  • London Stock Exchange
  • LSI – (i) Large-Scale Integration
  • LSIF – (i) Labour Sponsored Investment Fund
  • LSL – (s) Lesotho loti (ISO 4217 currency code)
  • LSND – (i) Liquid Scintillator Neutrino Detector
  • LSO – (s) Lesotho (ISO 3166 trigram)
  • LSST – (i) Large Synoptic Survey Telescope
  • LST – (i) Landing Ship, Tank (World War&nbsp;II; also known, not entirely affectionately, as "Large Slow Target")
  • LSVW – (i) Light Support Vehicle, Wheeled

LT

  • lt – (s) Lithuanian language (ISO 639-1 code)
  • Lt – (s) Lieutenant
  • LtC – (s) Lieutenant-Colonel (U.S.)
  • LT – (s) Lesotho (FIPS 10-4 country code) – Lithuania (ISO 3166 digram)
  • LTC – (i) Long-Term Costing
  • Ltd – (s) Limited
  • LTDP – (i) Long-Term Defence Plan
  • LTG – (s) Lieutenant General – (i) Lightning (METAR Code)
  • LTI – (i) Linear Time-Invariant
  • LTL – (s) Lithuanian litas (ISO 4217 currency code)
  • LTM – (i) Acronym for Laughing To Myself
  • LTO - (i) Long Term Occasional (substitute teachers)
  • LTP – (i) Long-Term Potentiation
  • LTU – (s) Lithuania (ISO 3166 trigram)
  • ltz – (s) Luxembourgish language (ISO 639-2 code)

LU

  • lu – (s) Tshiluba language (ISO 639-1 code)
  • Lu – (s) Lutetium
  • LU
  • (i) Lefèvre Utile, a French brand of biscuits/cookies
  • Loonatics Unleashed
  • Love You
  • lub – (s) Tshiluba language (ISO 639-2 code)
  • LUCA – (a) Last Universal Common Ancestor
  • lug – (s) Luganda (ISO 639-2 code)
  • LUG – (i) Linux User Group
  • LULU – (a) Locally Unwanted Land Use (urbanism)
  • LUT – (i) Limited User Test (ing) – Local User Terminal
  • LUVW – (i) Light Utility Vehicle, Wheeled
  • LUX – (s) Luxembourg (ISO 3166 trigram)

LV

  • lv – (s) Latvian language (ISO 639-1 code)
  • LV
  • (i) Las Vegas
  • (s) Latvia (ISO 3166 digram)
  • (i) Launch Vehicle
  • Leading Vehicle
  • (s) Leave
  • (i) Left Ventricle
  • Level Valve
  • Linking Verb
  • Liverpool Victoria
  • LVA – (s) Latvia (ISO 3166 trigram)
  • LVAD
  • (i) Left Ventricular Assist Device
  • (p) Low-Velocity Airdrop
  • LVEF – (i) Left Ventricular Ejection Fraction
  • LVL – (s) Latvian lats (ISO 4217 currency code)

LW

  • Lw – (s) Lawrencium (obsolete 1963)
  • LW
  • (i) Land Warrior
  • Low Water (nautical charts)
  • LWO - (i) Latino World Order (professional wrestling stable from WWE
  • LWR
  • (i) Laser warning receiver
  • Light-water reactor (type of nuclear reactor)
  • LWRC – (i) Land Warfare Resources Corporation
  • LWS – (i) Land Warrior System

LX

  • LX – (s) Luxembourg (amateur radio ITU prefix) – Swiss International Air Lines (IATA code)
  • LX – (p) Electrics (theatrical term)

LY

  • LY – (s) Libya (FIPS 10-4 country code; ISO 3166 digram) – Lithuania (amateur radio ITU prefix)
  • LYAO – Laugh Your Ass Off
  • LYD – (s) Libyan dinar (ISO 4217 currency code)
  • LYLAS – (a) Love You Like A Sister

LZ

  • LZ – (s) Bulgaria (amateur radio ITU prefix) – (i) Landing Zone

References