Lowing sound (3)
I believe the answer is:
moo
(Other definitions for moo that I've seen before include "Farmyard sound" , "Cow's sound" , "Cartoon sound of a cow" , "Cow's low" , "unpopular woman" .)
I believe the answer is:
moo
(Other definitions for moo that I've seen before include "Farmyard sound" , "Cow's sound" , "Cartoon sound of a cow" , "Cow's low" , "unpopular woman" .)