Latin American Spanish: seseo, ustedes and where people say vos

"Latin American Spanish" covers many national varieties, from Mexico to Chile. They differ in accent and vocabulary, but a few features are shared across the region and set it apart from the Spanish of most of Spain. This guide covers the three that matter most for a learner: seseo, ustedes, and the regions that use vos.

Seseo: one s sound for s, z and soft c

In Latin America, z, and c before e or i, are pronounced exactly like s. This is called seseo, and it is also normal in the Canary Islands and parts of Andalusia in Spain.

So these pairs sound identical:

Spelling	Meaning	Spelling	Meaning
casa	house	caza	hunt
ciento	hundred	siento	I feel (as in lo siento, I'm sorry)
cocer	to cook, boil	coser	to sew

Everyday words follow the same rule: gracias (thank you), cerveza (beer) and zapato (shoe) all use a plain s sound. Context makes the meaning clear in speech, but you still have to learn which letter each word uses when you write.

Two more sound points you will meet early:

• In most of Latin America, ll and y sound the same: calle (street) and yo (I) share one sound, close to the English "y". In Argentina and Uruguay, that sound is often closer to "sh" or the "s" in "measure".
• In the Caribbean and many coastal areas, an s at the end of a syllable is often softened to a breath like "h" or dropped. If a speaker seems to swallow word endings, this is usually why.

Ustedes: one plural "you"

Across Latin America, ustedes is the only plural "you". You use it with a group of friends and with a group of strangers alike. It takes the same verb form as "they":

• Ustedes tienen razón. (You're right, said to more than one person.)
• ¿Dónde viven ustedes? (Where do you live, asked of more than one person.)

The matching object pronouns are los, las and les, and the possessive is su.

In the singular, tú is informal and usted is formal. How often people choose usted varies by country and situation; with an adult stranger, usted is the safe choice until the other person signals otherwise.

You will also see vosotros forms such as habláis in materials from Spain. Latin American speakers understand them but do not use them in everyday speech, so you can treat them as something to recognise, not produce.

Voseo: where people say vos

In some regions, vos replaces tú as the informal singular "you".

• Argentina, Uruguay and Paraguay: vos is the normal informal "you" in speech, and common in informal writing.
• Much of Central America, including Costa Rica, Nicaragua, Honduras, El Salvador and Guatemala: vos is widely used, alongside tú and usted to varying degrees.
• Other countries, including Colombia and Chile, have vos forms in some regions or registers, with local differences.
• Mexico, Peru and the Caribbean mainly use tú.

The forms below are those of Argentina and Uruguay, the best-known voseo. In the present tense, the stress moves to the ending, and verbs that change their stem with tú do not change it with vos:

tú	vos	Meaning
hablas	hablás	you speak
comes	comés	you eat
vives	vivís	you live
eres	sos	you are
tienes	tenés	you have
quieres	querés	you want
mira	mirá	look!
ven	vení	come!

The object pronoun stays te and the possessive stays tu. In most other tenses, vos uses the same forms as tú.

A few everyday questions side by side:

• ¿De dónde sos? and ¿De dónde eres? (Where are you from?)
• ¿Qué querés? (What do you want?)
• ¿Tenés la llave? (Do you have the key?)
• Che, vení acá. (Hey, come here.)

What a learner actually needs

1. Default to tú and ustedes if you have no particular country in mind. They are understood everywhere in Latin America.
2. Learn vos from the start if you plan to spend time in Argentina, Uruguay or Paraguay. The extra work is small: mainly the present tense and commands.
3. Learn to recognise vos anyway. Films, series and songs from the River Plate region use it constantly, as in ¿Vos hablás con tus gatos? (Do you talk to your cats?)
4. Use one s sound for s, z and soft c, and learn spelling separately.
5. Keep your choice consistent within a conversation, and follow the lead of the person you are talking to.

A quick listening drill

Say each seseo pair aloud and notice that you are saying the same sounds twice: casa and caza, ciento and siento. Then read the voseo table aloud, first the tú column and then the vos column, stressing the last syllable of each vos form: hablás, comés, vivís.

Tonada, a language-learning app for adults, has an English-to-Latin American Spanish course (A1–B2) with audio and speaking practice.