Autonomous communities of Spain
Spanish legislation, most notably in the Statutes of Autonomy of the bilingual communities, use the term "own language", or "language proper to a community", to refer to a language other than Spanish that originated or had historical roots in that particular territory. The Statutes of Autonomy of the respective autonomous communities have declared Basque the language proper to the Basque Country and Navarre, Catalan the language proper to Catalonia, the Balearic Islands and the Valencian Community—where it is historically, traditionally and officially known as Valencian—and Galician to be the language proper to Galicia. There are other protected regional languages in other autonomous communities. As a percentage of total population in Spain, Basque is spoken by 2%, Catalan/Valencian by 17%, and Galician by 7% of all Spaniards. A 2016 Basque Government census revealed 700,000 fluent speakers in Spain (51,000 in Basque counties in France) and 1,185.000 total when passive speakers are included.
Mexico
Spanish is the "de facto" national language spoken by the vast majority of the population, making Mexico the world's most populous Hispanophone country. Mexican Spanish is the set of varieties of the language spoken in the country, which differs from one region to another phonetically, syntactically and lexically. In general, Mexican Spanish does not make any phonetic distinction among the letters "s" and "z", as well as "c" when preceding the vowels "e" and "i", as opposed to Peninsular Spanish. The letters "b" and "v" have the same pronunciation as well. Furthermore, the usage of "vos", the second person singular pronoun, found in several Latin American varieties, is replaced by "tú"; whereas "vosotros", the second person plural pronoun, fell out of use and was effectively replaced by "ustedes". In written form, the Spanish Royal Academy serves as the primary guideline for spelling, except for words of Amerindian origin that retain their original phonology such as "cenzontle" instead of "sinzontle" and "México" not "Méjico". Words of foreign origin also maintain their original spelling such as whisky and film, as opposed to "güisqui" and "filme" as the Royal Academy suggests. The letter "x" is distinctly used in Mexican Spanish, which may be pronounced as (as in "oxígeno" or "taxi"), as particularly in Amerindian words (e.g. "mixiote", "Xola" and "uxmal") and as the voiceless velar fricative (such as "Texas" and "Oaxaca").