Definition of "SERP"

Some are prepared to pay for placement; others use Search Engine Optimization (SEO) hoping their result percolates up the organic SERP.

2011, Jaroslav Pokorny, Vaclav Repa, Karel Richta, Wita Wojtkowski, Henry Linger, Chris Barry, Michael Lang, Information Systems Development: Business Systems and Services: Modeling and Development, Springer Science & Business Media, page 88

General search text ads are sold by general search engines, typically placed just above or below the organic search results on a SERP, and resemble the organic results that appear on a general search engine’s SERP, with a subtle notation that they are “ads” or “sponsored.”

2020 October 20, US v. Google Complaint‎