mu

exclamation1

1. •
   Neither yes nor no.

   • A monk once asked Master Joshu, 'Has a dog the Buddha Nature or not?' Joshu said, 'Mu!' — 2010

noun3

1. •
   The 12th letter of the Modern Greek alphabet.
2. •
   A unit of surface area, currently equivalent to two-thirtieths of a hectare.

   • Of 114 village farming families, only ten had more than 30 mu of land and only five had more than 60 mu. — 2007
3. •
   Nothingness; nonexistence; the illusory nature of reality.

   • That being the case, we should naturally choose to contemplate mu from morning to night, forgetting everything. — 2012

noun5

1. •
   (Philippines, slang) A person engaged in a situationship
2. •
   Initialism of matchup.
3. •
   Initialism of multiple unit.
4. •
   (Philippines, slang) Initialism of mutual understanding
5. •
   Initialism of North Maluku: a province of Indonesia.

noun1

1. •
   μ (a mu particle)