- kallikreins22
- karyogamies22
- karyologies20
- karyolymphs28
- karyotyping25
- keelhauling23
- keratinized26
- keratinizes25
- keratitides16
- kerplunking28
- kerseymeres20
- ketogeneses18
- ketogenesis18
- ketosteroid16
- kettledrums21
- keyboarders21
- keyboarding24
- keyboardist21
- keypunchers27
- keypunching30
- keystroking24
- kibbutzniks36
- kickboxings35
- kickstarted23
- kieselguhrs21
- killifishes22
- kilocalorie20
- kilogausses19
- kiloparsecs22
- kilopascals23
- kimberlites22
- kindhearted20
- kinematical23
- kinescoping25
- kinesiology21
- kinestheses18
- kinesthesia18
- kinesthesis18
- kinesthetic21
- kinetically23
- kineticists19
- kinetochore21
- kinetoplast20
- kinetoscope22
- kinetosomes19
- kingfishers23
- kinkinesses21
- kitchenette21
- kitchenware24
- kittenishly21
- klebsiellas21
- kleptomania23
- knackwursts27
- kneecapping28
- knickknacks35
- knifepoints23
- knighthoods23
- knobkerries23
- knockabouts27
- knockwursts27
- knotgrasses18
- knowingness23
- knuckleball30
- knucklebone29
- knucklehead28
- kolkhozniki36
- kolkhozniks36
- komondorock27
- kookaburras23
- kookinesses20
- krugerrands20
- kwashiorkor24
- kymographic30