-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)

• algebra
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• Algerian
• Algerine
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• algeses
• algesia
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• algesis
• -algia
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• algicide
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