Masculine and feminine in Spanish: how grammatical gender works

One of the most basic things we learn when we first study Spanish is that nouns, or names for things, can be masculine or feminine. In English you announce things with the article the, or with a and some, and none of them carry gender. In Spanish we say things like la mesa, el móvil, el libro or la casa, so at first this can seem strange: why is a table feminine and a book masculine?

The answer is that in Spanish, grammatical gender is not always related to sex. Grammatical gender is a characteristic of nouns that determines which article, adjective or pronoun we need to use.

For example, we say:

Spanish	English
el coche rojo	the red car
la casa roja	the red house
los coches rojos	the red cars
las casas rojas	the red houses

The noun and the words that accompany it must agree in gender and number.

Gender and number

You already know what the gender is, but what about the number? That is how we communicate whether we are talking about one thing or many things. And how can we see that in words? The easiest way is to look at the articles, which reflect those differences perfectly:

• el = masculine singular
• los = masculine plural
• la = feminine singular
• las = feminine plural

And all of them mean the.

How do we know if a word is masculine or feminine?

The "o" sound vs the "a" sound

In many cases, the ending gives us a clue. Nouns ending in -o are usually masculine, while those ending in -a are usually feminine: el libro, la casa, el teléfono, la ventana.

However, this rule has quite a few exceptions. For example:

Spanish	English
el día	the day
el mapa	the map
el planeta	the planet
el problema	the problem
el sistema	the system

All of these words end in -a, but they are masculine.

We also find feminine words ending in -o:

Spanish	English
la mano	the hand
la foto	the photo
la moto	the motorbike
la radio	the radio

So, although endings can help us, we cannot always know the gender of a word just by looking at its form.

Some words change meaning depending on their gender

In Spanish, changing the article can completely change the meaning of a word:

• el capital = money or wealth. La capital = the main city of a country or region.
• el cometa = a comet, an object we see in space. La cometa = a kite, a toy that flies in the wind.
• el cura = a priest. La cura = a cure or treatment for an illness.

For this reason, learning the word without its gender can lead to confusion.

What about el agua?

There is a particularly interesting case: feminine words that begin with a stressed a- sound. We say:

• el agua fría, the cold water
• el águila blanca, the white eagle
• el aula pequeña, the small classroom

Although we use el, these words are still feminine. We can see this from the adjective: fría, blanca, pequeña. We do not say el agua frío or el águila blanco.

The reason is phonetic: el is used to avoid a difficult sequence of sounds, such as la agua. However, when the word is plural, the feminine article becomes clearly visible again:

• las aguas frías
• las águilas blancas
• las aulas pequeñas

The gender of people

When we talk about people, gender can normally be related to the person's sex:

• el niño / la niña, the boy / the girl
• el profesor / la profesora, the male teacher / the female teacher
• el amigo / la amiga, the male friend / the female friend

But there is not just one rule for forming the feminine. Some words change -o into -a:

• el alumno becomes la alumna
• el abogado becomes la abogada

Others use different endings:

• el actor becomes la actriz
• el rey becomes la reina

And some words have the same form for masculine and feminine:

• el estudiante / la estudiante
• el artista / la artista
• el cantante / la cantante

In these cases, the article tells us the gender:

• El estudiante es inglés.
• La estudiante es inglesa.

So, how should we learn gender?

The best strategy for a Spanish student is to learn the noun together with its article.

Instead of memorizing:

mesa = table

it is better to learn:

la mesa = table

And instead of:

problema = problem

learn:

el problema = problem

This helps us use not only the correct article, but also adjectives and other words that need to agree with the noun.

Gender may seem complicated at first, but with practice we begin to recognize patterns. Above all, we discover that not everything in Spanish follows a perfect rule: some words simply have to be learned as they are.

Spanish has rules, but it also has exceptions. And precisely those exceptions are one of the most interesting parts of learning the language.