Growl
noun
A deep, rumbling, threatening sound made in the throat by an animal.
(by extension) The rumbling sound made by a person's stomach when hungry.
(by extension) An aggressive grumbling.
verb
To utter a deep guttural sound, as an angry animal; to give forth an angry, grumbling sound.
“The dog growled at me as I walked past.”
Of a wind instrument: to produce a low-pitched rumbling sound.
To send a user a message via the Growl software library.