-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.