1. Literally, to plug one's hears to avoid hearing something. The child is so nervous that he stops his ears whenever he hears loud noises nearby. I couldn't bear watching such a violent scene, so I shut my eyes and stopped my ears until it was over.

2. By extension, to willfully ignore or refuse to listen to something or what someone is saying. Usually followed by "to (someone or something)." The company is being accused of stopping its ears to employees who have presented complaints of harassment or bullying in the past. We can't stop our ears to those with differing political beliefs; they have as much of a stake in this country as we do.