1. To give advice: This is the most common meaning. It means to offer guidance or suggestions, usually based on your knowledge or experience.
* Example: "I advised him to study harder for his exam."
2. To inform someone formally: This is less common, and mainly used in formal contexts like legal or business situations. It means to officially communicate something, often in writing.
* Example: "The company will advise you of any changes to your policy."
Key difference: The first meaning implies offering an opinion or suggestion, while the second meaning implies conveying information.
Important note: "Advise" is often used with the preposition "on" or "about," as in "advise someone on something" or "advise someone about something."