Maechi or Mae chee, "respected mother", are female monastics in Thailand; Theravada Buddhist nuns. Ordained under The Eight or Ten Precepts, they formally occupy a position similar to sāmaṇerī and wear white robes, but are in practice resemblant of male Theravāda monastics - renunciants who have dedicated their life to Buddhist practice, meditation, vowing celibacy and ascetisicm.

In Buddhism, the eight precepts is a list of precepts that are observed by lay Buddhists on observance days and festivals. They include general precepts such as refraining from killing, but also more specific ones, such as abstaining from cosmetics and entertainments. This tradition of keeping the eight precepts on observance days are still widely practice in all Theravadin Buddhist countries and Theravadin Buddhist communities worldwide. Based on pre-Buddhist sāmaṇa practices, the eight precepts are often upheld on the Buddhist observance days, and in such context called the uposatha vows or one-day precepts. They are considered to support meditation practice, and are often observed when staying in monasteries and temples. In some periods and places the precepts were widely observed, such as in 7th–10th-century China by government officials. In modern times, there have been revival movements and important political figures that have observed them continuously.