Dog or cat, say (6)
I believe the answer is:
animal
I believe this is a double definition.
'dog' is the first definition.
(thesaurus)
'cat say' is the second definition.
(I know that house cat is a type of animal)
(Other definitions for animal that I've seen before include "Living creature with voluntary motion" , "Neither vegetable nor mineral" , "Beastly" , "Brute - one of the Muppets" , "Beast from Manila" .)