1º_ 'Ra' is the chemical symbol of radium. 2nd_ 'Ra' is the main god of Egyptian mythology. 3º_ 'Ra' is the name of a province of the archipelago of the Republic of Fiji. 4º_ 'AR' is an abbreviation for augmented reality. 5º_ 'RA' was an acronym used in Argentina during the 1983 electoral campaign by the UCR ("Radical Civic Union") for its candidate and later president Raúl Alfonsín. The advertising game was to highlight the coincidence between his initials and those of the Argentine Republic. 6º_ 'ra!' cry that repeated, usually three times, is used to animate.