Hindi is the name given to an Indo-Aryan language, or a dialect continuum of languages, spoken in northern and central India (the "Hindi belt"), It is the national language of India. The native speakers of Hindi dialects between them account for 40% of the Indian population (1991 Indian census). Standard Hindi is one of the 22 official languages of India, and is used, along with English, for administration of the central government. Standard Hindi is a Sanskritized register derived from the khari boli dialect. Urdu is a different, Persianized, register of the same dialect. Taken together, these registers are historically also known as Hindustani. The word Hind? is of Persian origin and literally means "Indian", comprising Hind "India", and the adjectival suffix -?. The word was originally used by Muslims in north India to refer to any Indian language: for example the eleventh-century writer Ab? Rayh?n al-B?r?n? used it to refer to Sanskrit. By the 13th century, "Hindi", along with its variant forms "Hindavi" and "Hindui", had acquired a more specific meaning: the "linguistically mixed speech of Delhi, which came into wide use across north India and incorporated a component of Persian vocabulary". It was later used by members of the Mughal court to distinguish the local vernacular of the Delhi region where the court was located from Persian, which was the official language of the court. Evidence from the 17th century indicates that the language then called "Hindi" existed in two differing styles: among Muslims it was liable to contain a larger component of Persian-derived words and would be written down in a script derived from Persian, while among Hindus it used a vocabulary more influenced by Sanskrit and was written in Devanagari script. These styles eventually developed into modern Urdu and modern Hindi respectively. However the word "Urdu" was not used until around 1780: before then the word "Hindi" could be used for both purposes. The use of "Hindi" to designate what would now be called "Urdu" continued as late as the early twentieth century. Nowadays Hind? as taken to mean "Indian" is chiefly obsolete; it has come to specifically refer to the language(s) bearing that name.

Spanish (español ) or Castilian (castellano) is a Romance language originally from the northern area of Spain. From there, its use gradually spread inside the Kingdom of Castile, where it evolved and eventually became the principal language of the government and trade. It was later taken to Africa, the Americas and Asia Pacific when they were brought under Spanish colonial rule between the 15th and 19th centuries. Today, it is one of the official languages of Spain, most Latin American countries and Equatorial Guinea. In total, 21 nations use Spanish as their primary language. Spanish is also one of six official languages of the United Nations. The language is spoken by between 322 and 400 million people natively, making Spanish the most spoken Romance language and possibly the second most spoken language by number of native speakers. Mexico has the world's largest Spanish-speaking population. Spanish is the second most widely spoken language in the United States and by far the most popular studied foreign language in U.S. schools and universities. Spanish is among the most popular foreign languages for study in the rest of the nations of the Anglosphere in general, where on top of the widespread use of English globally, the large number of additional countries and geographic territory that Spanish allows exploring is an attractive prospect for many people. Due to proximity, linguistic similarities, and trade reasons it is also a very popular second language in France, Italy, Portugal, and particularly the southern states of Brazil. It is estimated that the combined total of native and non-native Spanish speakers is approximately 500 million, likely making it the fourth most spoken language by total number of speakers. Global internet usage statistics for 2007 show Spanish as the third most commonly used language on the internet, after English and Chinese. Spaniards tend to call this language español (Spanish) when contrasting it with languages of other states, such as French and English, but call it castellano (Castilian), that is, the language of the Castile region, when contrasting it with other languages spoken in Spain such as Galician, Basque, and Catalan. This reasoning also holds true for the language's preferred name in some Hispanic American countries. In this manner, the Spanish Constitution of 1978 uses the term castellano to define the official language of the whole Spanish State