o, m, y are letters that make 'mommy'
mom, mm, MO, Mo, mo are words within 'mommy'
1 possible definitions for 'mommy'
Under this definition, mommy is a noun and has the following properties:
mammy, ma, mama, momma, mom, mum, mamma, mummy have the same meaning as 'mommy'
'mommy' can be a type of mother, female parent.