Bhikshu, Bhikshuni: Buddhist monk or nun who renounces the worldly to pursue liberation.
Bodhi: Sanskrit for “enlightenment”.
Bodhi Mind: Bodhicitta, or Great Mind. The spirit of Enlightenment and the aspiration to achieve it.
Bodhidharma (ca. 470-543): The first patriarch of Zen Buddhism. According to legend, he was the "Barbarian from the West" who brought Zen from India to China. "Why did Bodhidharma come from the West?" is a well-known Zen koan.
Bodhisattva: Sanskrit; one who postpones his or her own Enlightenment, to help liberate other sentient beings from their cyclic existence. Compassion is the main characteristic of the Bodhisattva.
Brahma Net Sutra: Contains the Ten Major and 48 Minor Bodhisattva precepts. These 58 precepts constitute the Bodhisattva vows taken by most Mahayana nuns and monks, and some advanced lay practitioners.
Buddha: Sanskrit; Butsu (Japanese). Literally, "awakened one". A Buddha is a person who has been released from the world of cyclic existence, samsara, and has been liberated from desire and attachment in nirvana.
Buddha Nature: The true, immutable nature of all beings.
Buddha Recitation (Buddha Remembrance): Recitation of Amitabha Buddha's name, or contemplation of His auspicious marks.