- lower school
- Lower Slobbovia
- lower the boom on
- lower world
- lowery
- Lowes
- lowest common denominator
- lowest common multiple
- Lowestoft
- lowest terms
- low explosive
- low-fat
- low-fi
- low frequency
- Low German
- low-grade
- low ground
- low-hanging fruit
- low hurdles
- low-impact
- low-income
- low-key
- lowland
- Lowland
- Lowlander
- lowland gorilla
- Lowlands
- Low Latin
- low-level
- low-level language
- low-level waste
- lowlife
- lowlight
- lowlihead
- low-loader
- lowly
- low-lying
- low man on the totem pole
- Low Mass
- low milling
- low-minded
- lown
- Lowndes
- low-necked
- lowp
- low-pass filter
- low-pitched
- low-power
- low-pressure
- low-priced
- low profile
- low-quality
- low-rate
- low relief
- low-rent
- low-res
- low-resolution
- lowrider
- lowriding
- low-rise
- low road
- lowry
- Lowry
- lowse
- lowside window
- low-spirited
- Low Sunday
- low-tar
- low tech
- low-tech
- low technology
- low-tension
- low-test
- low-ticket
- low tide
- lowveld
- low-velocity zone
- low water
- low-water mark
- low wine
- lox
- loxodont
- loxodrome
- loxodromic
- loxodromics
- loy
- Loy
- loya jirga
- loyal
- loyalist
- Loyalist
- Loyal Order of Moose
- loyalty
- loyalty card
- Loyalty Islands
- Loyang
- Loyola
- lozenge
- lozengy
- Lozère
- Lozi
- loˈgistic
- LP
- Lp(a)
- LPG
- LPGA
- L-plate
- lpm
- LPN
- LPO
- LPS
- lr
- Lr
- LR
- LRAM
- LRBM
- LRSC
- LRT
- ls
- LS
- LSAT
- LSD
- LSE
- L-shaped curve
- L-shell
- LSI
- L sill
- LSM
- LSO
- LST
- LSZ
- lt
- Lt
- LT
- lt.
- Lt.
- Lt. Col.
- Lt. Comdr.
- Lt. Gen.
- Lt. Gov.
- Lt. Inf.
- LTA
- Lt Cdr
- Lt Col
- Ltd
- Ltd.
- LTE
- Lt Gen
- Lt Gov
- LTJG
- LTL
- LTNS
- LTR
- ltr.
- LTSA
- LTV
- lt-yr
- lu
- Lu
- LU
- luach
- Lualaba
- Luanda
- Luang Prabang
- Luangwa
- Luanne
- Luanshya
- Luapula
- luau
- lub
- lub.
- Luba
- Lubang Islands
- Lubavitcher
- lubber
- lubber's hole
- lubber's knot
- lubber's line
- lubber grasshopper
- lubber line
- lubberly
- Lubbock
- lube
- Lübeck
- Lubitsch
- Lübke
- Lublin
- lubra
- lubric
- lubricant
- lubricate
- lubrication
- lubricator
- lubricious
- lubricity
- lubricous
- lubritorium
- Lubumbashi
- Lubyanka
- Lucan
- Lucania
- lucarne
- Lucas
- Lucas van Leyden
- Lucca
- luce
- Luce
- lucency
- lucent
- lucerne
- Lucerne
- luces
- lucha libre
- Lucia
- Lucia di Lammermoor
- Lucian
- Lucianne
- lucid
- lucida
- lucid dream
- lucidity
- lucifer
- Lucifer
- luciferase
- Luciferian
- Luciferianism
- luciferin
- lucifer match
- luciferous
- lucifugous
- Lucilius
- Lucille
- Lucina
- Lucinda
- Lucite
- Lucius
- Lucius I
- Lucius II
- Lucius III
- luck
- luckie
- luckily
- luck into
- luckless
- Lucknow
- luck of the devil
- luck of the draw
- luck out
- luckpenny
- lucky
- Lucky Country
- lucky dip
- lucrative
- lucre
- Lucretia
- Lucretius
- Lucrezia Borgia
- lucubrate
- lucubration
- luculent
- Lucullan
- Lucullus
- Lucy
- Lucy Stoner
- lud
- Lüda
- Luddite
- Luddites
- lude
- Ludendorff
- Lüdenscheid
- luderick
- Lüderitz
- Ludhiana
- ludic
- ludicrous
- Ludlow
- ludo
- Ludwig
- Ludwig II
- Ludwigsburg
- Ludwigshafen
- Luebke
- Luella
- Luening
- lues
- luetic
- luff
- luffa
- luff on luff
- luff tackle
- Lufkin
- Luftwaffe
- lug
- Lug
- Luganda
- Lugano
- Lugansk
- Lugar
- luge