https://en.wikipedia.org/wiki/Spanish_orthography#Orthographic_principles https://en.wikipedia.org/wiki/Spanish_orthography#Orthograph... x has the most differ

https://en.wikipedia.org/wiki/Spanish_orthography#Orthographic_principles https://en.wikipedia.org/wiki/Spanish_orthography#Orthograph... x has the most different sounds (as an example for going from writing to sound) Going from sounds to writing, I'll focus on one writing difference (but there are more in the above link): For the /k/ sound, it's "qu" before e or i but "c" in other words. (ignoring the letter "k" in borrowed words) Examples: queso. casa. https://spanishroute.com/podcast/stage-10-letters-c-z-k-x-qu-ch/ https://spanishroute.com/podcast/stage-10-letters-c-z-k-x-qu...