Abbot

Noun

 * 1) The superior or head of an abbey or monastery.
 * 2) One of a class of bishops whose sees were formerly abbeys. "Encyclopedia Britannica"
 * 3) (colloquial) The husband, or the preferred male, of a brothel-keeper (see ABBESS): C.19. cf. the old S.E. terms,
 * 4) (colloquial) A leader in a disorderly festivity.

Thesaurus
abbacomes, ascetic, beadsman, brother, caloyer, celibate, cenobite, conventual, conventual prior, friar, grand prior, hermit, hieromonach, lay abbot, lay brother, mendicant, monastic, monk, palmer, pilgrim, pillar saint, pillarist, prior, religieux, religious, stylite

Related terms
abba; abbé; abbess; abbot-general; Abbot of Misrule; abbot of the people; archabbot; archimandrite; cardinal-abbot; mitred abbot; mitered abbot; titular abbot