A glossary of military-based abbreviations, acronyms and initials used throughout the First World War, the Second World War and through to present day. The abbreviations are associated with various different nations, primarily the United Kingdom but also including, India, South Africa, USA, New Zealand and Australia. Abbreviations also have a strong focus on various armed forces such as the British Army, Royal Navy and Royal Air Force. Use the browse prefix below to navigate to glossaries beginning with a specific letter.
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Abbreviation
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Definition 1
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Definition 2 (if applicable)
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L
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Lieutenant (RN)
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LABOUR C
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Labour Corps
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LABR
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Labourer (Indian Labour Corps)
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LAC
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Leading Aircraftman (RAF)
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LACW
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Leading Aircraftwoman (RAF)
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LAD
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Light Aid Detachment
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Light Air Defence
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LANARK YEO
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Lanarkshire Yeomanry
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LANCS FUS
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Lancashire Fusiliers
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LB
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Landing Barge
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LC
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Labour Corps
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LCA
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Landing Craft, Assault
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LCI
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Landing Craft, Infantry
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L COL
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Lieutenant Colonel (Royal Marines)
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L CPL
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Lance Corporal
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L CR
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Lieutenant Commander (RN)
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LCRS
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Lancers
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LCT
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Landing Craft, Tank
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LEIC R
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Leicestershire Regiment
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LEIC YEO
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Leicestershire Yeomanry
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LEINS R
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Leinster Regiment
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LF
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Lancashire Fusiliers
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LG
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Lewis Gunner
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Life Guards Landing Ground (RAF) London Gazette
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L GDS
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Life Guards
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L H F AMB
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Light Horse Field Ambulance (Australian)
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LHR
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Light Horse Regiment (Australian)
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L H REG
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Light Horse Regiment (Australian)
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L H SIG TRP
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Light Horse Signal Troop (Australian)
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LI
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Light Infantry
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LIEUT
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Lieutenant
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LINC R
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Lincolnshire Regiment
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LINC YEO
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Lincolnshire Yeomanry
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L NAIK
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Lance Naik (Indian rank)
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LN LAN R
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Loyal North Lancashire Regiment
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LNLR
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Loyal North Lancashire Regiment
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L OF C
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Line of Communications
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LOND R
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London Regiment
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LOTH & BORD H
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Lothian and Border Horse
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LOVAT’S SCTS
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Lovat’s Scouts
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L’POOL R
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Liverpool Regiment
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LRB
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London Rifle Brigade
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LRDG
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Long Range Desert Group
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LRS
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Lancers
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LS
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Leading Seaman (RN)
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London Scottish
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LS & GCM
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Long Service and Good Conduct Medal
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L SGT
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Lance Sergeant
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LSH – RC
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Lord Strathcona’s Horse – Royal Canadians
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LSI
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Landing Ship, Infantry
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LST
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Landing Ship, Tank
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LT
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Lieutenant
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LT CDR
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Lieutenant Commander (RN)
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LT COL
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Lieutenant Colonel
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LT GEN
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Lieutenant General
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LT INFY
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Light Infantry
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LTMB AIF
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Light Trench Mortar Battery Australian Imperial Force
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