| knotty |
difficult to understand or solve; complex; intricate. [2 definitions] |
| know |
perceive directly or be aware of something through learning or observation. [7 definitions] |
| know-how |
(informal) the specialized knowledge needed to perform a certain task. |
| knowledge |
familiarity, awareness, or understanding. [4 definitions] |
| knowledgeable |
having knowledge; informed. |
| known |
past participle of know. [3 definitions] |
| know of |
to be aware of; have heard about. |
| knuckle |
any of the rounded joints of a finger, esp. the joint that connects the finger to the hand. [4 definitions] |
| knuckle down |
to start working in a concentrated manner; apply oneself seriously. |
| koala |
a furry marsupial, native to Australia, that climbs trees and feeds on eucalyptus leaves and bark; koala bear. |
| kook |
(slang) a person considered to be eccentric, strange, or crazy. |
| Koran |
the fundamental sacred text of Islam, believed to have been revealed to Muhammad by Allah and serving as the basis of Muslim religion, law, and secular conduct. |
| Korea |
a region of East Asia that had been a single country until war divided it into North Korea and South Korea in the 1950s. |
| Korean |
of or pertaining to North and South Korea, or to the people, culture, or language of these nations together. [2 definitions] |
| kosher |
allowable according to Jewish dietary laws. [4 definitions] |
| Kr |
symbol of the chemical element krypton. |
| Kremlin |
the historic citadel of Moscow, encompassing the government offices of Russia as well as palaces, cathedrals, and churches (prec. by "the"). [3 definitions] |
| krypton |
an inert gaseous chemical element that has thirty-six protons in each nucleus, used esp. as the atmosphere in high-powered light bulbs. (symbol: Kr) |
| KS |
abbreviation of "Kansas," a Midwestern U.S. state between Missouri and Colorado. |
| Kuwait |
a Middle Eastern country at the northern end of the Persian Gulf. |
| kwanza |
the chief monetary unit of Angola, equaling one hundred lwei. |