Definition of "ma"

ma¹

noun
plural mas
1. (astronomy, usually in the plural) Abbreviation of milli-arcsecond.

ma²

/mɑː/

noun
plural mas, not generally used in the plural
1. (colloquial, and in direct address) mother, mama
2. (colloquial) The landlady of a theater.
  Quotations
  […] that dear little man writing in the guestbook of the "Ma" or theatrical landlady […]
  1949, Shaw Desmond, The Edwardian Story, page 322

ma³

noun
1. May

ma⁴

determiner
1. (dialectal, informal) Alternative spelling of my

ma⁵

particle
1. Alternative form of mah
  Quotations
  Singlish is acceptable in Singapore mah
  1998 April 24, viken, “tcs shows”, in sg.rec.tv (Usenet)
  I dun have mah.
  2015 April 17, Jalelah Abu Baker, “What's the difference between 'lah' and 'lor': Poet Gwee Li Sui's take on nuances of Singlish goes viral”, in The Straits Times‎
  "I was already 32, so must get married mah," he says, using the Singlish word often used to express something which is obvious.
  2017 April 30, Wong Kim Hoh, “It Changed My Life: Migrant worker goes from painting condos to boss of own company”, in The Straits Times‎