The 1987 Constitution declares Filipino as the national language of the country. Filipino and English are the official languages, with the recognition of the regional languages as auxiliary official in their respective regions (though not specifying any particular languages). Spanish and Arabic are to be promoted on an optional and voluntary basis. Filipino also had the distinction of being a national language that was to be "developed and enriched on the basis of existing Philippine and other languages." Although not explicitly stated in the constitution, Filipino is in practice almost completely composed of the Tagalog language as spoken in the capital, Manila; however, organizations such as the University of the Philippines began publishing dictionaries such as the "UP Diksyonaryong Filipino" in which words from various Philippine languages were also included. The present constitution is also the first to give recognition to other regional languages. The constitution also made mention of Spanish and Arabic, both of which are to be promoted on a voluntary and optional basis.