definitions

SEO

search-engine optimization: the methods used to boost the ranking or frequency of a website in results returned by a search engine, in an effort to maximize user traffic to the site: The first step in SEO is to generate keywords that are relevant to your site's content.

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See also SEM(def 2).
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for search engine optimization (1 of 2)

search engine optimization

search engine optimisation

noun

computing the process of adjusting the content, structure, etc, of a website so that it will be displayed prominently by a search engine

British Dictionary definitions for search engine optimization (2 of 2)

SEO

abbreviation for

computing search engine optimization
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012