MnThe symbol for manganese.MNabbr.1. magnetic north2. MinnesotaAmerican 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.mn the internet domain name for (Computer Science) Mongolia Mn the chemical symbol for (Elements & Compounds) manganese MN abbreviation for 1. (in Britain) Merchant Navy 2. (Placename) Minnesota Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014MN Minnesota. Mn Chem. Symbol. manganese. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.MnThe symbol for manganese. The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.