- lisinopril
- lisle thread
- leatherfish
- leathered
- linen paper
- loom
- luffa
- loofah
- lungi
- longyi
- lungyi
- lame (crippled by defect in a foot or leg)
- lame duck
- legume
- lorca
- lemon balm
- landscape
- lawn cart
- lawn chair
- limestone fern
- lammergeyer
- lammergeier
- loss ratio
- loading
- load factor
- legal representation
- law enforcement agency
- local authority
- lowboy
- life office
- Lepidobotryaceae
- left_winger
- leftist
- league
- Lycium
- Lindheimera
- Lepechinia
- Leontopodium
- Leontodon
- Lonas
- Leucanthemum
- Lasthenia
- Ligularia
- Layia
- Lycopus
- Lonicera
- Lycopersicum
- Linnaea
- Leonotis
- Leonurus