Related Clues:

• Made an animal sound
• Snarled
• Warned, watchdog-style
• Emitted low dull rumbling sounds
• Made low rumbling sounds
• Made low guttural sounds of hostility
• Warned someone off, in a way
• Grumbled, snarled
• Grumbled
• Sounded like a guard dog
• Expressed anger as wanton lodger embraced wife