pir

noun2

1. •
   A Muslim holy man or religious leader, especially Sufi.

   • The five Pirs are not the only Muhammadan martyrs who are worshipped. — 1894
2. •
   One of the three hereditary, traditionally endogamous Yazidi castes, taking similar religious roles as the sheikh caste with a few differences.

noun3

1. •
   Initialism of passive infrared.
2. •
   Initialism of property irregularity report: a form to be filled in when baggage is lost by an airline.
3. •
   Abbreviation of polyisocyanurate.