Maasai - 26

Maba - 27

Mabuiag - 18

Maidu - 22

Malagasy - 24

Malakmalak - 18

Malay - 39

Malayalam - 27

Manchu - 23

Mandarin - 30

Maori - 13

Maranungku - 21

Margi - 41

Maung - 20

Mazahua - 57

Mazatec - 31

Mixe - 21

Mixtec - 24

Mongolian - 35

Moro - 24

Moxo - 22

Muinane - 26

Mundari - 34

Mura - 9

Mursi - 24