Difference between Grumble and Growl

GRUMBLE vs GROWL: NOUN

The sound made by a hungry stomach.
The deep, threatening sound made in the throat by an animal; a grumbling sound.
The deep, threatening sound made by a surly dog; a grumbling sound.
The sound of growling (as made by animals)
The low, guttural, menacing sound made by an animal.
A gruff surly utterance.
A deep snarling and threatening sound from the throat, expressive of the hostility of an animal; hence, the grumbling or faultfinding of an offended or discontented person.

To utter in a grumbling fashion.
To complain.
To make a low, growling or rumbling noise, like a hungry stomach or certain animals.
Make complaining remarks or noises under one's breath
Show one's unhappiness or critical attitude
Make a low noise
To utter or emit low dull rumbling sounds

To growl; to snarl in deep tones.
To murmur or mutter with discontent; to make ill-natured complaints in a low voice and a surly manner.
To rumble; to make a low, harsh, and heavy sound; to mutter.
To express in a grumbling discontented manner.
To rumble or growl.
To complain in a surly manner; mutter discontentedly.

To emit a low guttural sound or utterance.
To speak in an angry or surly manner.
To utter a deep guttural sound, as an angry dog; to give forth an angry, grumbling sound.
To utter by growling.

To express by growling or grumbling.
To make reluctant; cause to grudge: used reflexively.
Hence To speak in an offended or discontented tone; find fault; grumble: as, he growled at being disturbed.
To utter a deep guttural sound of anger or hostility, as a dog or a bear; hence, to emit a sharp rumbling sound, as the forces of nature.

Griping, Moan, Complain, Jones, Gnarl, Grouch, Croak, Rumble, Rumbling, Growl, Murmuring, Scold, Murmur, Muttering, Mutter

Yelp, Scream, Snarl, Screech, Roar, Wail, Purr, Shriek, Hiss, Yowl, Throaty, Howl, Gnar, Grumble, Rumble

Grousing, Whine, Griping, Moan, Jones, Gnarl, Grouch, Rumble, Rumbling, Growl, Murmuring, Scold, Murmur, Muttering, Mutter

Whine, Squeal, Yelp, Scream, Screech, Roar, Wail, Purr, Shriek, Hiss, Yowl, Throaty, Howl, Grumble, Rumble

It hisses at you with this guttural tiger growl.
And that makes me want to growl at you.
Instead, avoid behaviors that cause the dog to growl.
Notification Center is now used in place of Growl.
The growl has been there from jump street.
Velvet shouted and made Magilou growl in disappointment.
An uncomfortable growl pours from the water heater.
He began to growl and attack the two cats and he started to growl at me all the time.
I've been told that the Growl framework 1.2.2 (still opensource) can speak to plain old Growl and Growl 1.3.
Hear the tigers growl, growl, growl, growl, growl, growl, growl growl.