The definition of a growl is a low, hostile sound especially made by a dog, in order to express anger.(noun)
To growl is defined as to make a low, rumbling sound in your throat in order to express hostility or anger.(verb)
See growl in Webster's New World College Dictionary
Origin: ME groulen, to rumble, prob. of echoic orig.
See growl in American Heritage Dictionary 4
Origin: Middle English groule, grollen, to rumble, growl
Origin: , probably from Old French grouler
Origin: , of Germanic origin.
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