Growl
WordNet
noun
(1) The sound of growling (as made by animals)
verb
(2) To utter or emit low dull rumbling sounds
"He grumbled a rude response"
"Stones grumbled down the cliff"
WiktionaryText
Noun
- The deep, threatening sound made in the throat by an animal; a grumbling sound.
- The sound made by a hungry stomach.
Verb
- To utter a deep guttural sound, as an angry animal; to give forth an angry, grumbling sound.
- To express (something) by growling.
- To send a user a message via the Growl software library.