Nagarjuna: Founder of the Madhyamika school of Buddhism.
Nirvana: Sanskrit; literally, "extinction, blowing out". It is the goal of Buddhist spiritual practice, which is liberation from the cycle of rebirth and suffering.
Non-Birth (No-Birth): The nature of Nirvana. No-birth is the elimination of discursive thinking.
Nyingmapa: One of the four major schools of Tibetan Buddhism.