Spanish gender of nouns rules
Spanish nouns are usually masculine or feminine. Common endings can help you identify gender, but it’s useful to learn each new noun with its article.
Want to practice right away? Start the plural de los sustantivos exercise.

What does gender mean in Spanish?
Every Spanish noun has a grammatical gender. A noun is usually either masculine or feminine, even when it names an object with no natural gender.
For example:
- el libro: the book
- la mesa: the table
- el teléfono: the phone
- la ciudad: the city
A table isn’t female, and a phone isn’t male. Gender is part of the Spanish word and affects the words around it.
Articles such as el, la, un, and una must match the noun. Describing words, called adjectives, often change to match it too.
- el libro rojo: the red book
- la mesa roja: the red table
- un teléfono nuevo: a new phone
- una ciudad nueva: a new city
This matching is called agreement. It means that connected words use the same gender and number.
The common pattern: nouns ending in -o and -a
Many masculine nouns end in -o, while many feminine nouns end in -a.
| Common pattern | Examples |
|---|---|
| -o is often masculine | el libro, el vaso, el perro |
| -a is often feminine | la casa, la ventana, la camisa |
Here are the patterns in full sentences:
- El perro es pequeño.: The dog is small.
- La casa es pequeña.: The house is small.
- Tengo un vaso blanco.: I have a white glass.
- Tengo una camisa blanca.: I have a white shirt.
These patterns have exceptions, so don’t rely on the final letter alone.
Important exceptions to -o and -a
Some masculine nouns end in -a:
- el día: the day
- el mapa: the map
- el planeta: the planet
- el problema: the problem
- el tema: the topic
- el idioma: the language
Several of these words came from Greek. You don’t need to study their history, but you may notice the pattern in words such as problema, tema, and sistema.
A few feminine nouns end in -o:
- la mano: the hand
- la foto: the photo
- la moto: the motorbike
Foto is a shortened form of fotografía, and moto comes from motocicleta. Their feminine gender remains after the words are shortened.
Learn the article and noun together. Instead of memorizing problema, learn el problema. For mano, learn la mano rather than the noun alone.
Feminine noun endings
Several endings are strong clues that a noun is feminine.
Nouns ending in -ción and -sión
Words ending in -ción or -sión are usually feminine:
- la canción: the song
- la información: the information
- la conversación: the conversation
- la televisión: the television
- la decisión: the decision
For example, Es una decisión importante means “It is an important decision.” The article una shows that the noun is feminine.
Nouns ending in -dad and -tad
These nouns are generally feminine:
- la ciudad: the city
- la universidad: the university
- la verdad: the truth
- la libertad: freedom
- la amistad: friendship
They may not end in -a, but their endings provide a useful clue.
Nouns ending in -tud and -umbre
These endings also usually mark feminine nouns:
- la actitud: the attitude
- la juventud: youth
- la costumbre: the custom or habit
- la incertidumbre: uncertainty
For example, Es una buena costumbre means “It is a good habit.” Both una and buena agree with the feminine noun costumbre.
Common masculine noun endings
Nouns ending in -aje are normally masculine:
- el viaje: the trip
- el mensaje: the message
- el paisaje: the landscape
- el garaje: the garage
Many nouns ending in -or are also masculine:
- el color: the color
- el error: the mistake
- el calor: the heat
- el amor: love
Feminine exceptions include la flor (the flower) and la labor (the task or work).
Names of languages are masculine too:
- el español: Spanish
- el inglés: English
- el francés: French
For example, El español es interesante means “Spanish is interesting.”
Nouns for people and animals
With people and many animals, gender often corresponds to the person’s or animal’s sex. The ending may change from -o to -a:
- el niño / la niña: the boy / the girl
- el abuelo / la abuela: the grandfather / the grandmother
- el gato / la gata: the male cat / the female cat
Some nouns keep the same form and change only the article:
- el estudiante / la estudiante: the male student / the female student
- el artista / la artista: the male artist / the female artist
- el cantante / la cantante: the male singer / the female singer
Other pairs use different words:
- el hombre / la mujer: the man / the woman
- el padre / la madre: the father / the mother
- el caballo / la yegua: the horse / the mare
When talking about professions, usage can vary by region and personal preference. If you know which form a person uses, follow it when describing them.
The special case of feminine nouns beginning with stressed a
A small group of feminine nouns use el in the singular because they begin with a stressed a- or ha- sound. This prevents two stressed a sounds from occurring together.
- el agua fría: the cold water
- el águila blanca: the white eagle
- el hacha vieja: the old axe
- el aula pequeña: the small classroom
These nouns are still feminine. Their adjectives use feminine forms: fría, blanca, vieja, and pequeña.
They also commonly use un in the singular:
- un águila blanca: a white eagle
- un aula pequeña: a small classroom
In the plural, they return to the regular feminine article:
- las aguas frías: the cold waters
- las águilas blancas: the white eagles
- las aulas pequeñas: the small classrooms
Gender can change a word’s meaning
A few nouns have different meanings depending on whether you use el or la.
| Masculine | Feminine |
|---|---|
| el capital: money or capital | la capital: capital city |
| el cometa: comet | la cometa: kite |
| el cura: priest | la cura: cure |
| el orden: order or arrangement | la orden: command |
Compare these examples:
- Madrid es la capital de España.: Madrid is the capital of Spain.
- La empresa necesita más capital.: The company needs more capital.
- El niño tiene una cometa.: The boy has a kite.
- Vimos un cometa en el cielo.: We saw a comet in the sky.
Here, the article indicates which meaning is intended.
How gender works with plural nouns
Making a noun plural doesn’t change its gender. A masculine noun stays masculine, and a feminine noun stays feminine.
- el libro → los libros: the book → the books
- la casa → las casas: the house → the houses
- el papel → los papeles: the paper → the papers
- la ciudad → las ciudades: the city → the cities
Spanish plural nouns usually add -s after an unstressed vowel and -es after a consonant. The article and adjective must become plural as well:
- la casa blanca → las casas blancas: the white house → the white houses
- el papel importante → los papeles importantes: the important paper → the important papers
You can review when to use -s or -es in the Spanish plural noun rules guide. Then test singular and plural nouns in Spanish with this short plural nouns exercise.
Common gender mistakes
Guessing from the English word
English nouns don’t usually have grammatical gender, so translation can’t tell you whether a Spanish noun is masculine or feminine. Learn la leche, not simply leche, and el pan, not simply pan.
Trusting the final letter every time
The -o and -a patterns are helpful, but words such as el día, el problema, and la mano show why you need to learn exceptions.
Matching the adjective to the person speaking
The adjective matches the noun it describes, not necessarily the speaker. A man and a woman would both say Tengo una camisa roja, meaning “I have a red shirt.” Roja matches camisa.
Forgetting agreement in longer sentences
It’s possible to choose the correct article but forget to change the adjective:
-
Incorrect: la casa blanco
-
Correct: la casa blanca: the white house
-
Incorrect: los libros nueva
-
Correct: los libros nuevos: the new books
For focused practice, study the rules for noun gender and then complete the Spanish noun gender exercise.
A practical way to remember noun gender
Use these four habits when learning vocabulary:
- Always include the article. Write la puerta, not just puerta.
- Add a short example. Try La puerta está abierta: “The door is open.”
- Group words by ending. Keep lists for -ción, -dad, -aje, and other common patterns.
- Mark exceptions clearly. Highlight words such as el problema and la mano.
You can also use color as a reminder, but include the article as well. Say the article and noun aloud together: el viaje, la canción, el mapa.
Practice with a few nouns at a time. Check your answers, then return to the words you find difficult.
Quick gender checklist
When you meet a new Spanish noun, check:
- Does it end in common masculine -o or feminine -a?
- Does it have a clue such as -ción, -dad, or -aje?
- Is it a known exception?
- What article appears with it in the dictionary or sentence?
- Do the article and adjective agree with the noun?
If you’re unsure, check a dictionary rather than guessing. Dictionaries commonly list nouns with m for masculine or f for feminine.
Frequently asked questions
Are all Spanish nouns ending in -a feminine?
No. Many are feminine, but common masculine exceptions include el día, el mapa, el planeta, el problema, and el tema.
Are all nouns ending in -o masculine?
No. Many are masculine, but la mano is an important exception. Shortened words such as la foto and la moto are feminine too.
Why is it el agua if agua is feminine?
Agua uses el in the singular because it begins with a stressed a sound. It remains feminine, so you say el agua fría and las aguas frías.
Does noun gender change in the plural?
No. Only the number changes. El libro becomes los libros, while la mesa becomes las mesas.
How can I learn Spanish noun gender?
Learn each noun with its article and a short phrase. Use common endings as clues, and note exceptions such as el problema and la mano.
Keep practicing
Treat the article and noun as a unit: la ciudad, el viaje, and el problema.
Review common endings, note exceptions, and check that articles and adjectives match the noun.