mir

noun1

1. •
   (historical) A traditional village community in Imperial Russia, characterised by self-government and collectivist control of local lands.

   • [T]he constitution of the village […] was a subject which specially interested me, because I was aware that the Mir is the most peculiar of Russian institutions. — 1878

noun2

1. •
   Synonym of mail-in rebate.
2. •
   Abbreviation of mid infrared or mid-infrared radiation.

noun2

1. •
   The Yazidi prince; the highest temporal authority of the Yazidis.
2. •
   A Yazidi title for a prince or for certain authoritative religious characters, like God or Tawûsî Melek

noun1

1. •
   Abbreviation of microRNA.