verb

1. 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.”

2. Of a wind instrument: to produce a low-pitched rumbling sound.

3. To send a user a message via the Growl software library.

Synonyms: gnar, gnarl, gurl, snarl

noun

1. A sustained instance of growls or guttural noises.

   “The growling from her stomach told us she was hungry.”

2. The technique of producing a low-pitched growling or rumbling sound on a wind instrument.

adjective

1. Producing a growl.

   “The growling dog frightened him.”