To make public announcement of, especially to proclaim the qualities or advantages of (a product or business) so as to increase sales. See Synonyms at announce. To make known; call attention to: advertised my intention to resign. To warn or notify: "This event advertises me that there is such a fact as death\u201d ( Henry David Thoreau). To call the attention of the public to a product or business. To inquire or seek in a public notice, as in a newspaper: advertise for an apartment.