Other forms: mamas
Mama is a kind of nickname for your mother, another way to say "mom" or "mommy." A very common first word for babies in nearly every country is mama.
The ma sound shows up very early in a baby's babbling, and experts believe that's where mama originated. Nearly every Indo-European language has a word for "mother" that sounds like mama, including the Latin mamma, the Greek mamme, and the Persian mama. Plenty of older kids and even adults use the word too, as a fond nickname for their mother.