To make something known to the public, usually through paid announcements. The company decided to advertise their new product on television.
To draw attention to or describe a product, service, or event in order to promote sales or attendance. They advertised the concert on social media to attract more attendees.
To announce or praise a product or service in some public medium of communication in order to induce people to buy or use it. The restaurant advertised its new menu in the local newspaper.
To announce the availability of or request for something in a public notice, typically in order to hire, sell, or obtain it. They advertised for a new assistant in the classifieds section.