| Term | Definition |
| lagoon | N. shallow body of water near a sea; lake |
| laity | N. laypersons; persons not connected with the clergy |
| lambaste | V. beat; thrash verbally or physically |
| lament | V. grieve; express sorrow |
| lampoon | V. ridicule |
| lancet | N. small surgical tool for making incisions |
| languid | ADJ. weary; sluggish; listless |
| languish | V. lose animation or strength |
| languor | N. lassitude; depression |
| lank | ADJ. long and thin |
| lap | V. take in food or drink with one's tongue; splash gently |
| larceny | N. theft |
| larder | N. pantry; place where food is kept |
| largess | N. generous gift |
| lascivious | ADJ. lustful |
| lassitude | *N. languor; weariness |
| latent | *ADJ. potential but undeveloped; dormant; hidden |
| lateral | ADJ. coming from the side |
| latitude | N. freedom from narrow limitations |
| laud | *V. praise |
| lavish | ADJ. liberal; wasteful |
| lax | ADJ. careless |
| leaven | V. cause to rise or grow lighter; enliven |
| lechery | N. gross lewdness; lustfulness |
| lectern | N. reading desk |
| leery | ADJ. suspicious; cautious |
| leeway | N. room to move; margin |
| legacy | N. a gift made by a will |
| legend | N. explanatory list of symbols on a map |
| legerdemain | N. sleight of hand |
| leonine | ADJ. like a lion |
| lethal | ADJ. deadly |
| lethargic | *ADJ. drowsy; dull |
| levee | *N. earthen or stone embarkment to prevent flooding |
| levitate | V. float in the air (especially by magiacal means) |
| levity | *N. lack of seriousness or steadiness; frivolity |
| levy | V. impose (a fine); collect (a payment) |
| lewd | ADJ. lustful |
| lexicographer | N. compiler of a dictionary |
| lexicon | N. dictionary |
| liability | N. drawback; debts |
| liaison | N. contact that keeps parties in communication; go-between; secret love affair |
| libel | N. defamatory statement; act of writing something that smears a person's character |
| libertine | N. debauched person, roue |
| libidinous | ADJ. lustful |
| libido | N. emotional urges behind human activity |
| libretto | N. text of an opera |
| licentious | ADJ. amoral; lewd and lascivious; unrestrained |
| lien | N. legal claim on a property |
| ligneous | ADJ. like wood |
| lilliputian | ADJ. extremely small |
| limber | ADJ. flexible |
| limbo | N. region near heaven or hell where certain souls are kept; a prison (slang) |
| limn | V. draw; outline; describe |
| limpid | ADJ. clear |
| lineage | N. descent; ancestry |
| lineaments | N. features, especially of the face |
| linger | V. loiter or dawdle; continue or persist |
| lionize | V. treat as a celebrity |
| liquidate | V. settle accounts; clear up |
| list | V. tilt; lean over |
| listless | ADJ. lacking in spirit or energy |
| litany | N. supplicatory prayer |
| lithe | ADJ. flexible; supple |
| litigation | N. lawsuit |
| litotes | N. understatement for emphasis |
| livid | ADJ. lead-colored; black and blue; ashen; enraged |
| loath | ADJ. reluctant; disinclined |
| loathe | V. detest |
| lode | N. metal-bearing vein |
| lofty | ADJ. very high |
| log | *N. record of a voyage or flight; record of day-to-day activities |
| loll | V. lounge about |
| longevity | N. long life |
| loom | V. appear or take shape (usually in an enlarged or distorted form) |
| lope | V. gallop slowly |
| loquacious | *ADJ. talkative |