- lean to
- live off back
- lie way out of
- Liopelma hamiltoni
- leptodactylid frog
- Leptodactylus pentadactylus
- leptodactylid
- lebanese pound
- loaf sugar
- layby
- lay_up
- lookup
- looseness of the bowels
- lipemia
- lipoidaemia
- lymphuria
- lightheadedness
- lipaemia
- lay open to
- lead ore
- launce
- launch out into
- lieutenancy
- legateship
- legislatorship
- locally_attached station
- localized
- localization principle
- launching site
- localisation principle
- land area
- lucubrate
- layoff
- lock washer
- Lorfan
- levallorphan
- large cap
- lay claim
- longbeard
- long_beard
- lock_up option
- loveseat
- love seat
- lexicalise
- lexicalize
- loanblend
- loan_blend
- logos
- log up
- lead up