What is the crossword answer for the clue: Old MacDonald sound

MOO - a 3 letter word may be the answer you are looking for!

OINK - a 4 letter word may be the answer you are looking for!

BAABAA - a 6 letter word may be the answer you are looking for!

MOOMOO - a 6 letter word may be the answer you are looking for!

Old MacDonald sound

3 Character Answers:

MOO

4 Character Answers:

OINK

6 Character Answers:

BAABAA

MOOMOO