| kittle | adj. | ticklish, difficult to deal with | ||
| kittle cattle | n. | people difficult to deal with; things difficult to manage | ||
| Klaberjass | n. | two-handed trick-taking card game using a piquet deck with the Jack and nine of trumps as highest cards | ||
| kleptocracy | n. | rule by thieves | ||
| Kletterschuh | n. | light boot with cloth or felt sole made especially for climbing | ||
| knacker | v. | 1 | to tire out; to damage | British |
| knacker | n. | 2 | one who buys carcasses or slaughters useless livestock for a rendering works | British |
| knacker’s yard | n. | abattoir, slaughterhouse | ||
| knackers | n. | testicles | slang | |
| knap | v. | to chip; to break off | ||
| knife-boy | n. | boy employed to clean knives | ||
| knobkerrie | n. | short wooden club with heavy knob at its head used by South African tribes (also knobkerry) | ||
| knop | n. | ornamental knob | ||
| koine | n. | lingua franca; amalgam of Greek dialects that replaced Classical Greek in the Hellenistic Age | ||
| Kondratiev wave | n. | long cycles in technological advancement that greatly affect the world economy | ||
| Krishnacore | n. | musical subgenre mixing hardcore punk with Krishna Consciousness | ||
| kudu | n. | large striped African antelope | ||
| 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 |
