Which term describes a user-initiated ad that temporarily increases in size for better visibility?

The term that corresponds to a user-initiated ad that temporarily increases in size for better visibility is known as an expandable ad. This format allows the ad to initially appear in a smaller, more discreet form, which can then be expanded when the user interacts with it, such as by hovering over it or clicking on it. This dynamic interaction serves to draw more attention to the advertisement without being overly intrusive, thus enhancing user engagement while providing advertisers with an impactful way to present their messages.

In the context of digital advertising, expandable ads are considered effective because they can deliver a richer experience by allowing for more detailed content, images, or promotions without taking up excessive screen space at all times. This interaction style leverages user choice, which can lead to higher engagement rates as users who expand the ad have shown a preference for more information.

Static ads, on the other hand, do not change size or shape upon interaction. Interstitial ads typically cover the entire screen and are automatically shown at natural transition points, often interrupting the user experience. Dynamic ads focus on automated targeting and personalization rather than size changes. Hence, the functionality and engagement offered by expandable ads makes them distinct and effective in the current digital landscape.