There are several synonyms for the word "animal's snarl." Some of the commonly used synonyms are growl, yowl, roar, and snarling. A growl is a low-pitched, guttural sound produced by an animal, usually indicating anger or warning. Yowl is a mournful, wailing cry often produced by cats or dogs. Roar is a deep, loud noise produced by lions, tigers, and other big cats. Snarling is a vicious, angry growl produced by an animal that is hostile or aggressive. These words can all be used interchangeably to describe the sound of an animal's snarl in different contexts.