K
K commonly denotes the chemical element potassium, while in sports it serves as shorthand for kicks, kickers, or karate moves.
Medical
Miscellaneous
Kevin
Kenneth
Kuality
Kelang
Karel
Kenshin
Kurt
Kenna
Kelly
King
Konspiracy
Kerotin
Kathleen
The Keshas
Kookazoid
Kay
Kosher
Krazy
The Katoomba
Kvetch
Kerry
Kat
Kirk
Kraft
Kurtz
Community
Governmental
International
Academic & Science
Potassium
Cathode
Kelvin
the Kth item
Kreosote
Permeability factor
Electromechanical Relay
Killed
Boltzmann Constant
Regional
Computing
Internet
Business
Kellogg Company
Know
Kaiser
Knit
Kopkit
Thousands of ...
Kresge (later K-mart, KMRT, formerly KM and KMRTQ) de-listed