What is the meaning of ま?

The hiragana syllable ま (ma). Its equivalent in katakana is マ (ma). It is the thirty-first syllable in the gojūon order; its position is ま行あ段 (ma-gyō a-dan, “row ma, section a”).

a spatial interval

1. the space between two (physical) things

   the space between two (physical) things

   a room in a building

   a temporal interval

   1. the time between two events

      the time between two events

      the time to do something or that a state lasts for

      timing, moment

      目, 眼: prefixal bound form of め (me, “eye”)

      真: the truth, reality, genuineness

      真: real, genuine

      真: pure, unadulterated

      真: definitely, certainly, exactly, precisely, directly

      真: true, real, main

      真: great, excellent

      Source: wiktionary.org