1. (noun)kelvin, K the basic unit of thermodynamic temperature adopted under the Systeme International d'Unites
2. (noun)potassium, K, atomic number 19 a light soft silver-white metallicelement of the alkalimetal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
3. (noun)thousand, one thousand, 1000, M, K, chiliad, G, grand, thou, yard the cardinal number that is the product of 10 and 100
4. (noun)kilobyte, K, KB, kB a unit of information equal to 1000 bytes
5. (noun)kilobyte, kibibyte, K, KB, kB, KiB a unit of informationequal to 1024 bytes
2. K [rare; poss fr. kilo- prefix]
Extremely. Rare among hackers, but quite common among crackers and
warez d00dz in compounds such as k-kool/K´kool´/, k-rad/K´rad´/, and k-awesome/K´aw`sm/. Also used to intensify
negatives; thus, k-evil, k-lame, k-screwed, and k-annoying. Overuse of this prefix, or use in
moreformal or technical contexts, is considered an indicator of
lamerstatus.