1º_ In Spanish 'ABC' is an acronym with various developments, as to refer to the "Arts and Cultural Properties" or the writer Adolfo Bioy Casares. 2º_ Also in English it is used for automatic brightness control, American Business Council, and others. 3º_ ' . abc' is a file extension for various types of documents. 4º_ 'ABC' is the IATA code for Albacete-Los Llanos International Airport ( Castilla-La Mancha, Spain ). See abecé , abecedario .
It means encyclopedia, complete book, abstract, compendium, excerpt. In Brazil is the name of a professional football club based in Natal, Rio Grande do Norte. Name of a Spanish newspaper . Name of a treaty between Argentina, Brazil and Chile signed in 1915 in Niagara Falls (Canada). It is a non-aggression pact between these countries. It is also an abbreviation used by Atalanta of Bergamo, an Italian football club (meaning Atalanta Bergamasca Calcio).