Making Spanish Nouns Plural and Matching Their Articles

Making Spanish nouns plural with -s and -es

Spanish nouns change form when you talk about more than one person or thing. The most common plural patterns are simple: add -s after a vowel and add -es after most consonants.

• el libro — the book → los libros — the books
• la mesa — the table → las mesas — the tables
• el hotel — the hotel → los hoteles — the hotels
• la ciudad — the city → las ciudades — the cities

The noun changes to show plural number, and the article changes too. Spanish does not normally keep a singular article in front of a plural noun.

Adding -s after a vowel

If a singular noun ends in an unstressed vowel, the usual plural is formed by adding -s.

• el libro — the book → los libros — the books
• la casa — the house → las casas — the houses
• el médico — the doctor → los médicos — the doctors
• la profesora — the teacher → las profesoras — the teachers

The basic pattern is consistent: the noun becomes plural, and the article changes from el or la to los or las.

Adding -es after most consonants

If a noun ends in a consonant, the usual plural is formed by adding -es.

• el hotel — the hotel → los hoteles — the hotels
• la ciudad — the city → las ciudades — the cities
• el profesor — the teacher → los profesores — the teachers

Do not add only -s automatically to every Spanish noun. The final sound of the singular noun helps determine whether the plural uses -s or -es.

Changing -z to -ces in the plural

Nouns ending in -z change the z to c before adding -es.

• la luz — the light → las luces — the lights
• la voz — the voice → las voces — the voices

The important spelling pattern is -z → -ces. This keeps the plural form consistent with Spanish spelling conventions.

Matching definite articles in the plural

The singular definite articles el — the and la — the become los — the and las — the in the plural.

Singular	Plural
el libro — the book	los libros — the books
la mesa — the table	las mesas — the tables
el hotel — the hotel	los hoteles — the hotels
la ciudad — the city	las ciudades — the cities

The article must match both gender and number. Masculine plural nouns use los in these basic definite phrases, while feminine plural nouns use las.

Matching indefinite articles in the plural

The singular indefinite articles un — a / an and una — a / an become unos — some and unas — some in basic plural phrases.

Singular	Plural
un libro — a book	unos libros — some books
una mesa — a table	unas mesas — some tables
un médico — a doctor	unos médicos — some doctors
una profesora — a teacher	unas profesoras — some teachers

As with el, la, los, and las, the article and noun must agree. You cannot change the noun to plural and leave un or una unchanged.

Keeping gender and number as separate ideas

Gender and number are different grammatical features. A noun can be masculine or feminine, and it can also be singular or plural.

• el libro — the book: masculine singular
• los libros — the books: masculine plural
• la mesa — the table: feminine singular
• las mesas — the tables: feminine plural

Making a noun plural does not change its grammatical gender. Libro remains masculine in los libros — the books, and mesa remains feminine in las mesas — the tables.

Converting complete noun phrases from singular to plural

When you change a noun phrase from one item to more than one, change both the noun and the article.

• el hotel — the hotel → los hoteles — the hotels
• la casa — the house → las casas — the houses
• un estudiante — a student → unos estudiantes — some students
• una estudiante — a student → unas estudiantes — some students

Notice that estudiante keeps the same noun form for masculine and feminine gender in the singular examples you learned earlier, but the article still shows the gender. In the plural, unos estudiantes — some male or mixed-group students and unas estudiantes — some female students keep that same article distinction.

Using plural nouns in familiar sentences

You can now apply these plural noun phrases to sentences with ser and other vocabulary you already know.

• Ellos son estudiantes. — They are students.
• Ellas son profesoras. — They are teachers.
• Los hoteles son grandes. — The hotels are large.
• Las casas son grandes. — The houses are large.

For now, focus on the plural noun phrase and article agreement. Detailed adjective agreement will be taught later.

From plural nouns to choosing tú or usted

You can now make familiar Spanish nouns plural with -s or -es, apply the -z to -ces spelling change, and match the articles los, las, unos, and unas. The next lesson focuses on forms of “you” in Spanish and when to choose tú or usted while recognizing other regional and plural forms.