Growl
Growl (groul) , intransitive verb
[Dutch grollen to grunt, murmur, be angry; akin to German grollen to be angry.]
To utter a deep guttural sound, as an angry dog; to give forth an angry, grumbling sound. — Gay
Growl , transitive verb
To express by growling. — Thomson
Growl , noun
The deep, threatening sound made by a surly dog; a grumbling sound.