Is ok to hit dog if growl at wife?

It is never acceptable to hit a dog, or any animal, regardless of the circumstances. Domestic violence and animal abuse are both serious issues that should not be tolerated. Dogs growl for a reason, such as if they feel threatened or if they're in pain. It's important to understand why a dog is growling and address the situation rather than resorting to violence. If you believe you or your wife are in danger, you should contact the authorities. There are other options available, such as consulting with a professional dog trainer, to ensure the issue is handled in a safe and humane manner.