1º_ Cathedral . Spanish is taken from Catalan or Aragonese seu, probably originating from the Latin sedes, is ("seat, seat"). 2º_ 'SEO' is an acronym for the Expression in English Search Engine Optimization ("optimization [for] search engines") that is used in Spanish for techniques that allow websites to position themselves better in the list of results offered by search engines. 3º_ 'SEO' in Spanish has several developments, such as "Sociedad de Estudios Ornitológicos". 4º_ 'SEO' is the IATA code for Seguela Airport (Ivory Coast).
