Pronunciation: (ad-vīs'),[key] —n. 1. an opinion or recommendation offered as a guide to action, conduct, etc.: I shall act on your advice. 2. a communication, esp. from a distance, containing information: Advice from abroad informs us that the government has fallen. Recent diplomatic advices have been ominous. 3. an official notification, esp. one pertaining to a business agreement: an overdue advice.