(television) Initialism of Children's BBC.

(Britain) Initialism of Confederation of British Industry. / (India) Initialism of Central Bureau of Investigation.

(law) Initialism of Confidential Business Information. / (railways) Initialism of Computer-Based Interlocking.

(physiology) Initialism of cerebral blood flow.

(Internet slang) Can't Be Fucked; can't be bothered.

Initialism of case-based discussion. / Initialism of central business district. / Initialism of consortium board of directors. / (software engineering) Initialism of component-based development.

(military) Initialism of chemical, biological, nuclear. Alternative form of NBC

(organic chemistry) Abbreviation of cannabinol.

(astrophysics) Initialism of cosmic background radiation. / (computing) Initialism of case-based reasoning. / (computing) Initialism of constant bitrate. / Abbreviation of Canberra.

(military, US, emergency medicine) Initialism of chemical, biological, radiological, and nuclear, used to remember the four types of weapons of mass destruction.