| Kufic | adj. | of or related to the Iraqi city of Kufa; of or related to Arabic characters used in originally writing the Koran | ||
| laager | n. | camp, especially one formed by a protective circle of wagons | ||
| labyrinth | n. | maze | ||
| lac | n. | one hundred thousand, esp. of rupees; (fig.) a large, indeterminate number | ||
| lacquer tree | n. | tree producing resin used in making of coating for wood and other craft items | ||
| lacustrine | adj. | of or relating to a lake or lakes | ||
| ladybird | n. | variant for ladybug | ||
| lag | v. | to send to prison; to capture, to apprehend | ||
| lagan | n. | goods or cargo sunk at sea which may yet be claimed by original owner | ||
| laggard | adj. | sluggish; dilatory | ||
| lagniappe | n. | small bonus, unexpected trifling gift; extra present given with a purchase by the storeowner | ||
| lairage | n. | resting place for cattle on their way to slaughter | ||
| lairy | adj. | aggro; vulgar | British | |
| lakh | n. | [Indian] a hundred thousand | ||
| lalochezia | n. | using vulgar words to palliate stress or pain | ||
| laloplegia | n. | paralysis of speech organs | ||
| lambdacism | n. | inability to properly pronounce the letter ‘l’; substitution of the letter ‘l’ for other sounds (such as ‘r’) | ||
| lambic | n. | Belgian beer from Pajottenland or Brussels | ||
| lambrequin | n. | woven covering for a knight’s helmet; decorative drapery placed over door or window | ||
| lame | n. | tool holding razor blade, used for marking or scoring bread dough | ||
| lamella | n. | gill of a mushroom; plate or scale of bone or other tissue | ||
| lammergeier | n. | bearded vulture | ||
| lamping | n. | hunting at night using lights | British | |
| lampyrine | adj. | of or about fire-flies | ||
| landaulet | n. | early automobile style having a small passenger compartment and an open area behind the windshield for the chauffeur | ||
| landrace | n. | plant or animal exemplar purposely bred to thrive in local conditions | ||
| langlauf | v. | to ski cross-country | ||
| lantern | n. | open structure atop a roof permitting light to enter and smoke to leave (architecture) | ||
| lantern jaw | n. | protruding lower jaw; long thin jaw | ||
| lanx | n. | large serving platter used in ancient Rome | ||
| Laodicean | n. | person lukewarm in religion, politics, etc. | ||
| lapidescence | n. | petrifaction, quality of turning into stone | ||
| lappet | n. | flap or loose fold of garment | ||
| lapstone | n. | stone placed in lap against which shoemaker beat and stretched leather | archaic | |
| lapstrake | adj. | clinker-built, having a hull with overlapping planks; a vessel built thusly | nautical | |
| lapwing | n. | large plover | ||
| largophone | n. | musical instrument made of a long wooden pole with jingles attached, played by shaking or pounding or with another smaller notched stick (also lagerphone) | ||
| larrikin | n. | (Australian) hooligan, (usu. young) street tough | ||
| larrup | v. | to flog, beat, thrash | ||
| LAT relationship | n. | “Living Alone Together”, of couples in long-term relationships who still maintain separate residences and often lives apart from one another | idiom | |
| latitudinarian | adj. | tolerant, allowing great latitude in attitude (esp. of religious principles); lax, lacking necessary rigidity in views | ||
| laund | n. | glade, grassy pasture amidst woods | ||
| lavalier | n. | (also lavaliere) jeweled pendant worn on chain around the neck | ||
| laver | n. | basin for washing, as of hands; baptismal font | ||
| lawn | n. | fine linen fabric | ||
| lawny | adj. | covered in grass | ||
| lazarette | n. | hospital for contagious patients, esp. lepers; glory hole, storeroom aboard ship set within the hull | ||
| lazarine | adj. | back from the dead; of or related to a specific type of ulcerating leprosy | ||
| lazaroidal | adj. | of or related to lepers | ||
| lazzarone | n. | beggar, wretched person; member of poorer class in Naples |