List of acronyms: L

(Main list of acronyms)


 * 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 LC2IEDM – (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)
 * 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
 * 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 LRAS3 – (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 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