(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) – Last Log – Late Latin – Left Limit – Lex Luthor (Superman character) – Light Line – Limited Liability – Linked List – Little League 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