A·ba (ä?b?) A city of southern Nigeria northeast of Port Harcourt. It is an important market and transportation center.ABAabbr.1. American Bankers Association2. American Bar Association3. American Booksellers Association4. American Basketball Associationa·ba (?-bä?, ä?b?)n.1. A fabric woven of the hair of camels or goats.2. A loose-fitting sleeveless garment made of this fabric or of wool, traditionally worn by Arabs.3. See abaya.[Arabic ‘ab?’.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.aba (?æb?) n1. (Textiles) a type of cloth from Syria, made of goat hair or camel hair2. (Clothing & Fashion) a sleeveless outer garment of such cloth[from Arabic]ABA abbreviation for 1. (Boxing) (in Britain) Amateur Boxing Association 2. (Journalism & Publishing) American Booksellers Association Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014a?ba (??b?, ?? b?) n., pl. a?bas. 1. a coarse fabric woven of camel’s or goat’s hair. 2. a loose, sleeveless outer garment made of this fabric or of silk, worn by Arabs. [1805?15;