Bhikkhu
A bhikkhu (Pali, Sanskrit: bhikṣu, Sinhala: භික්ෂුව) is an ordained male monastic ("monk") in Buddhism. A female monastic ("nun") is called a bhikkhuni (Sanskrit bhikṣuṇī).
The lives of all Buddhist monastics are governed by a set of rules called the prātimokṣa or pātimokkha. Their lifestyles are shaped to support their spiritual practice: to live a simple and meditative life and attain nirvana.