Dialectal Variation
There are important variations—phonological, grammatical, and lexical—in the spoken Spanish of the various regions of Spain and throughout the Spanish-speaking areas of the Americas.
The variety with the most speakers is Mexican Spanish. It is spoken by more than twenty percent of the world's Spanish speakers (107 million of the total 494 million, according to the table above). One of its main features is the reduction or loss of unstressed vowels, mainly when they are in contact with the sound /s/.
In Spain, northern dialects are popularly thought of as closer to the standard, although positive attitudes toward southern dialects have increased significantly in the last 50 years. Even so, the speech of Madrid, which has typically southern features such as yeísmo and s-aspiration, is the standard variety for use on radio and television, and is the variety that has most influenced the written standard for Spanish.
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