-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)

• upvaluations
• upvalue
• upvalued
• upvalues
• upvaluing
• UPVC
• uPVC
• upwaft
• upwafted
• upwafting
• upwafts
• upward
• upwardly
• upwardly mobile
• upward mobility
• upwardness
• upwardnesses
• upward of
• upwards
• upwards of
• upwell
• upwelled
• upwelling
• upwellings
• upwells