(UK, historical) Initialism of British Military Administration., used in the late 1940s as an overprint on certain stamps of Great Britain used in British offices in Eritrea and Tripolitania.

Initialism of British Central Africa., as overprinted on stamps of Rhodesia in 1891.

(slang) A male who performs b-boying or breaking, commonly called breakdance; a breaker. / (slang) A male member of the hip-hop subculture.

(slang) To breakdance.

plural of B cell

(aviation) Initialism of Automatic dependent surveillance – broadcast. (automated broadcast of aircraft location information from satellite navigation systems to air traffic control networks)

(Britain) Any of many minor roads in Britain, typically branching off of A roads and travelling to smaller towns and villages

(computing) An indexed data structure suitable for storage of a large number of items in a balanced fashion, with very few disk accesses required for locating the correct record block.

(linguistics) The western member of the Tocharian branch of Indo-European languages, extinct since the ninth century. Once spoken in the Tarim Basin in Central Asia.

Abbreviation of back-up.