Next to English and Mandarin Chinese as the top two most popular languages in the world, Spanish takes the third rank with a total number of more than 400 million people spoken from different countries. Yet, if we could take Spanish as the language spoken with the most number of speakers, it surpasses English as second ranked since most of its speakers are not native and have a different mother tongue.
Now, similar to other languages that vary depending on the area where it is spoken, Spanish has ample dialects and variations. Spain alone even has different dialects being used like Mexican, RioPlatense (Argentina), Catalan, Galician, Basque, and particularly Castilian as its national standard. This standard is also implemented in countries like Uruguay, Paraguay, parts of Ecuador, and other Latin American countries. This diversion is caused by aboriginal languages that greatly contribute to the present status of Spanish language at present; and immigrants who influenced Spanish from different nations.
As Wisegeek explained, diversion of Spanish language is varied based on its accent, forms of address, and pronunciation of certain Spanish letters. Other accents outside Spain are also being used particularly on areas like Central and North America, Argentina, and more. In terms of its vocabulary, Spanish plainly has two singular pronouns for the second person: tú for informal and usted for formal. But RioPlatense variation has a third form, which is known as voseo. Even Spanish in Ecuador has vos variations as well. Lastly, pronunciation of Spanish differs in particular with letters s, c, and z, and the y and ll. Latin American countries standards s and z in most of their words, just as casa (house) means a lot different from caza (hunt).
One common language, different variations: that’s the beauty of language. This only reveals that Spanish is worth learning for.