| Term | Definition |
| lagoon | shallow body of water near a sea; lake |
| laity | lay person; person not connected with the clergy |
| lambaste | beat; thrash verbally or physically |
| lament | grief; express sorrow |
| lampoon | ridicule |
| lancet | small surgical tool for making incisions |
| languid | weary; sluggish; listless; showing little or no spirit |
| languish | lose animation or strength; To waste away from longing or grief: |
| languor | lassitude; depression |
| lank | long and thin |
| lap | take in food or drink with one's tongue; splash gently |
| larceny | theft |
| larder | pantry; place where food is kept |
| largess | generous gift |
| lassitude | languor; weariness; lethargy |
| latent | potential but undeveloped; dormant; hidden |
| lateral | coming from the side |
| latitude | freedom from narrow limitations; Freedom from normal restraints, limitations, or regulations. |
| laud | praise |
| lavish | liberal; wasteful |
| lax | careless |
| leaven | cause to rise or grow lighter |
| lechery | gross lewdness; lustful; Excessive indulgence in sexual activity; |
| lectern | reading desk |
| leery | suspicious; cautious |
| leeway | room to move; margin |
| legacy | a gift made by a will |
| legend | explanatory list of symbols on a map |
| legerdemain | sleight of hand; A trick or set of tricks performed by a juggler or magician so quickly and deftly that the manner of execution cannot be observed; |
| leniency | mildness; permissiveness |
| leonine | like a lion |
| lethal | deadly |
| lethargic | drowsy; dull |
| levee | earthen or stone embankment to prevent flooding |
| levitate | float in the air ( especially by magical means) |
| levity | lack of seriousness or steadiness; frivolity |
| levy | impose ( a fine); collect payments |
| lewd | lustful |
| lexicographer | compiler of a dictionary |
| lexicon | dictionary |
| liability | drawback; debts |
| liaison | contact that keep parties in communication; go-between; secret love affair |
| libel | defamatory statement; act of writing something that smears a person's character |
| libertine | One who acts without moral restraint; a dissolute person;debauched person; roue |
| libidinous | lustful |
| libido | sexual desire; emotional urges behind human activity |
| libretto | text of an opera |
| licentious | amoral; lewd and lascivious; unrestrained |
| lien | legal claim on a property |
| ligneous | like wood |
| lilliputian | extremely small |
| limber | flexible |
| limbo | region near heaven or hell where certain souls are kept; a prison (slang) |
| limn | draw; outline; describe |
| limpid | clear |
| lineage | descent; ancestry |
| lineament | features, especially of the face |
| linger | loiter or dawdle; continues or persist |
| linguistic | pertaining to the language |
| lionize | treat as a celebrity |
| liquidate | settle accounts; clear up |
| list | tilt; learn over |
| listless | lacking in spirit or energy |
| litany | supplicatory prayer; To ask for humbly or earnestly, as by praying |
| lithe | flexible; supple |
| litigation | lawsuit |
| litotes | understatement for emphasis |
| livid | lead colored; black and blue; ashen; enraged |
| loath | reluctant; disinclined |
| lode | metal-bearing vein |
| lofty | very high |
| log | record of voyage or flight; record of day-to-day activities |
| loiter | hang around; linger |
| loll | lounge about; To take on or move with an awkward, slovenly posture: |
| longevity | long life |
| loom | appear or take shape ( usually in an enlarged or distorted form) |
| lope | gallop slowly |
| loquacious | talkertive |