-n't shortened (enclitic) form of not¹

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)

• squiredom
• squiredoms
• squireen
• saurischian
• saurischians
• saurognathous
• sauroid
• sauropod
• sauropodous
• sauropods
• sauropsidan
• sauropsidans
• Sauropterygia
• sauropterygian
• Saururae
• saury
• sausage
• sausage bassoon
• sausage bassoons
• sausage dog
• sausage dogs
• sausage machine
• sausage machines
• sausage meat
• sausage meats