Seseo, distinción and ceceo: how c, z and s are pronounced

Explanation

Three systems share the same spelling. Distinción keeps two phonemes: z and c before e/i are /θ/ (the th of think), while s is /s/ — so casa and caza are different words to the ear. Seseo has only /s/: both are pronounced casa. Ceceo, the mirror image, uses a /θ/-like sound for all three and is confined to pockets of western Andalusia, where it carries local stigma. Geographically, distinción covers central and northern Spain; seseo covers all of Latin America — roughly 90% of the world's Spanish speakers — plus the Canary Islands and much of Andalusia.

The practical effect is homophony, not error. Under seseo, casa/caza, cocer/coser, ciento/siento, abrazar/abrasar and ves/vez are pairs of identical-sounding words, disambiguated by context exactly as English does with there/their. Spelling never changes: seseo speakers write cerveza and zapato with the same letters a Madrid speaker uses, which is why c/z/s orthography has to be learned as vocabulary in Latin America rather than heard.

For a learner: adopt seseo unless you are specifically targeting Peninsular Spanish. It is understood everywhere without exception, it adds no phoneme that English, French or German speakers lack, and the RAE explicitly recognises it as fully standard — the older idea that distinción is "proper Castilian" and seseo a simplification is not a linguistic judgement. Two things to avoid: mixing the systems within your own speech, and confusing ceceo with distinción — a distinguidor pronounces s as /s/, and only the ceceante does not.

Examples

Related rules

• C, z, s: seseo — they all sound like s
• Aspirated s: ehtá, ¿cómo ehtás?
• Distinción: the /θ/ of z and ce/ci in Peninsular Spanish
• Yeísmo and žeísmo: the many ways to say ll and y