"SEA HDR" stands for "Search Engine Ad High Dynamic Range", a term used in online advertising. It refers to a technique that allows advertisers to adjust the ad copy displayed to users based on their search queries in real-time. Instead of a static ad, the SEA HDR technique dynamically changes the content of the ad to better match the user's search intent. Synonyms for SEA HDR include dynamic ad copy, real-time adjustments, personalized advertising, target-specific content, and contextual targeting. These synonyms emphasize the ability of advertisers to tailor their ad messages to individual users, resulting in a more relevant and engaging online advertising experience.