| A | B |
| Larceny | n theft; robbery |
| Lavish | v to spend freely or bestow generously; to squander |
| Lax | adj negligent; lazy; irresponsible |
| Layman | n a nonprofessional |
| Liaison | n connection |
| Limpid | adj transparent; clear |
| Listless | adj sluggish; without energy or enthusiasm |
| Litany | n list; tedious recounting |
| Livid | adj enraged; discolored; black and blue |
| Loath | adj extremely unwilling |
| Lobby | v to urge legislative action; to exert influence |
| Lout | n boor |
| Ludicrous | adj ridiculous |
| Lyrical | adj songlike; poetic |