-n’t Contraction of not.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.-n’t contraction of not: used as an enclitic after be and have when they function as main verbs and after auxiliary verbs or verbs operating syntactically as auxiliaries: can’t; don’t; shouldn’t; needn’t; daren’t; isn’t. Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014-n’t a contraction of not: didn’t; hadn’t; couldn’t; shouldn’t; won’t. NT or N.T., 1. New Testament. 2. Northern Territory. 3. Northwest Territories. 4. Nunavut. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.