Definition - What does Nirvana mean?
Nirvana is the central concept of Buddhism, Jainism and Hinduism, and is the ultimate goal as defined by these religious philosophies; It is the state in which the soul is freed from rebirth.
In Sanskrit, the term means "blown out" or "extinguished." Nirvana can be defined as the state in which an individual experiences no suffering as he/she is free from rebirth.
Yogapedia explains Nirvana
Nirvana is considered the ultimate happiness by Buddhism. Upon achieving enlightenment, Buddha is said to have achieved the state of nirvana. Nirvana, according to Buddhism, is freedom from desire, jealousy, attachment and ignorance.
Hinduism defines the state of nirvana as spiritual liberation, or moksha. According to Hinduism, all are Brahman (Absolute Reality) within. Brahman elevates the soul to the state of nirvana. Hinduism recommends Karma yoga, Jnana yoga and Bhakti yoga as paths that lead to nirvana.
Nirvana is considered the highest objective by Jainism. The religion recommends principles including ahimsa, satya and aparigraha to be relieved of one's karma and, subsequently, achieve nirvana.