NT

1. National Theatre (now known as RNT)
2. National Trust
3. New Testament
4. Northern Territory (Aust)
5. Northwest Territories (of Canada)
6. No trumps (cards)

-n't shortened (enclitic) form of not¹

• roupit
• roups
• roupy
• rousant
• rouse
• rouseabout
• rouseabouts
• roused
• rousement
• statistic
• statistical
• statistically
• statistical mechanics
• statistician
• statisticians
• statistics
• statists
• stative
• statives
• stato-
• statoblast
• statoblasts
• statocyst
• statocysts
• statolith