Ba·ha·sa Indonesia (bä-hä?s?)n. See Indonesian.[Indonesian, Indonesian language, from Sanskrit bh???, speech, language.]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.Bahasa Indonesia (b???h??s?) n (Languages) the official language of Indonesia: developed from the form of Malay formerly widely used as a trade language in SE AsiaCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014In?do?ne?sian (??n d??ni ??n, -??n, -zi ?n, -do?-) n. 1. a native or inhabitant of Indonesia; a citizen of the Republic of Indonesia. 2. a form of Malay that serves as an official language and lingua franca in Indonesia. adj. 3. of or pertaining to Indonesia, its inhabitants, or the language Indonesian. [1840?50] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.