Definition of "KB"

KB

symbol
1. (computing, formal) Abbreviation of kilobyte.
2. (computing, informal) Abbreviation of kibibyte.
noun
plural KBs
1. (computer science) Initialism of knowledge base.
2. (prison slang) Initialism of knockback.
  Quotations
  […] has had a 'K.B.' (knock-back) by being turned down for parole is something which the prison staff have had to learn to deal with […]
  1975, John Eryl Hall Williams, Changing Prisons, page 81
  My subsequent misconduct in prison had many inmate friends telling me that I would receive a knock-back. […] At least I feel the wheels are rolling onwards and if I get a KB I am passing time.
  1989, Michael Bettsworth, Marking Time: A Prison Memoir, page 160
3. (slang) Abbreviation of kine bud. (High-grade marijuana.)
4. Initialism of Knowledge Bowl.
proper noun
1. (astronomy) Initialism of Kuiper Belt.
2. West Kalimantan in Borneo