Abbreviation of bachelor: used in abbreviations of names of bachelor's degrees, usually followed by an abbreviation indicating the specific discipline. / (law) Abbreviation of baron.

(Internet slang) banned (blocked from participation).

(text messaging) bat

Alternative form of BA

Abbreviation of breadth. / Abbreviation of bin or ibn in Arabic names. / Abbreviation of ben in Hebrew names.

Abbreviation of born.

(euphemistic) Any of various taboo words beginning with the letter B, particularly bitch.

(trains) A locomotive with an engine, generator, and traction motors, but without a control cab.

(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.