Definitions
1.nounA deep, rumbling, threatening sound made in the throat by an animal.
2.noun(by extension) The rumbling sound made by a person's stomach when hungry.
3.noun(by extension) An aggressive grumbling.
4.noun(by extension) A low-pitched rumbling sound produced with a wind instrument.
5.verbTo 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."
6.verbOf a wind instrument: to produce a low-pitched rumbling sound.
7.verbTo send a user a message via the Growl software library.
8.verbTo express (something) by growling."The old man growled his displeasure at the postman."
9.verbTo play a wind instrument in a way that produces a low-pitched rumbling sound.