Noun Plurals in Spanish

Use a plural noun when you are talking about more than one person, place, thing, or idea.

Most Spanish nouns form the plural with -s or -es.

Basic plural rules

Singular ending	Plural	Example
vowel	add -s	casa → casas
consonant	add -es	hotel → hoteles

**Vowels** are **a, e, i, o, u**; all other letters are **consonants**.

Examples:

• libro → libros — book → books
• casa → casas — house → houses
• cafetería → cafeterías — café → cafés
• hotel → hoteles — hotel → hotels
• animal → animales — animal → animals
• mujer → mujeres — woman → women

Words ending in -z

For nouns ending in -z, change z to c and add -es.

• luz → luces — light → lights
• vez → veces — time → times

Articles must also become plural

When the noun is plural, its article must match:

• el libro → los libros
• la casa → las casas
• un hotel → unos hoteles
• una tienda → unas tiendas

Adjectives also match

Adjectives must agree with the plural noun too.

• la casa pequeña → las casas pequeñas
• un hotel moderno → unos hoteles modernos
• el libro nuevo → los libros nuevos

Do not change only the noun:

• ✅ las casas pequeñas
• ❌ la casas pequeña

The same agreement pattern also appears with demonstratives and possessives.

Quick rule

Vowel → add -s. Consonant → add -es.

Remember that articles and adjectives usually need to become plural too.