Definitions

1. noun

a person or animal that growls, a container that holds a drink that has been cooled in a refrigeration unit, or a device that produces a low, rumbling sound

“The dog is a fierce growler when strangers approach our house.”

2. verb

to make a low, rumbling sound, like a dog, or to complain in a low voice

“The baby growled with hunger and needed to be fed.”