Al hablar, un yeísta no distingue entre las palabras "valla" y "vaya".A person who pronounces the letter "ll" as "y" in Spanish doesn't make a distinction between the words "valla" and "vaya" when speaking.
Un adjetivo es una palabra que describe a un sustantivo (p. ej. el perro grande).
Las regiones de Andalucía y Extremadura son fundamentalmente yeístas.Most people in the regions of Andalusia and Extremadura pronounce Spanish "ll" as "y."
Algunos lingüistas están a favor de la adaptación de la ortografía española a la pronunciación yeísta.Some linguists are in favor of adapting Spanish spelling to the pronunciation of the letter "ll" as "y."