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

• Acherontis pabulum
• aches
• Acheulean
• Acheulian
• achier
• achiest
• achievable
• achieve
• achieved
• achievement
• achievement age
• achievement ages
• achievement quotient
• achievement quotients
• achievements
• achiever
• achievers
• achieves
• achieving
• achillea
• Achillean
• achilleas
• Achilles' heel
• Achilles' tendon
• achimenes