The crossword solution for the term 'Hearing Aids, in Brief' is PAS, which stands for Personal Amplification System. Hearing aids are devices that help people with hearing loss to hear better. They work by amplifying sound and making it easier for the user to understand speech. PAS is a type of hearing aid that is designed to be worn on the body, usually around the neck or behind the ear. It is a more discreet option than traditional hearing aids, and can provide improved sound quality and comfort.