- liverish
- liveries
- liability insurance
- latent heat vaporisation
- latent hypermetropia
- loathe
- logarthimic transformation
- lucius quinctius cincinnatus
- lithomancy
- lit an out_of_season flower—an untimely thing
- lenity
- Louisianian
- land and water
- little sparrow
- loam soil
- lateran treaty
- like sin
- like that
- lyrebird
- like nobodys business
- like the wind
- langmuir adsorption isotherm
- luge
- luggage carrousel
- luggage carrier
- larghetto
- largo
- left of center
- left lateral position
- light heavyweight
- light hour
- light heartedly
- light whipping cream
- light minute
- lieutenant governor
- lusaka
- Lutheran Church
- leydig cell
- little by little
- little leaguer
- Lanius ludovicianus migrans
- Lanius lucovicianus
- leap out
- lesser peritoneal sac
- lease giver
- lit. to kiss one's pen —to immensely like an expression
- lima bean
- left_handed
- lepidopterology
- long johns