Feminine nouns that take “el”: why it’s el agua but la abeja

In the singular, a feminine noun that begins with a stressed /a/ takes el (and un, algún, ningún) instead of la. The article changes; the noun stays feminine, so everything else agreeing with it stays feminine too: el agua fría.

Grammatical gender is a property of the noun. Which article you use is a separate choice. The Real Academia Española (RAE) explains that in these cases el is not the masculine article but a formal variant of the feminine one, inherited from Latin.

Agua and casa are both feminine. Only agua takes el. Mapa takes el because it really is masculine.

Before a feminine singular noun that begins with a stressed /a/ — written a- or ha- — the feminine article takes the form el: el águila, el aula, el hacha. The same goes for un, algún and ningún: un alma, algún hada, ningún arma.

The RAE gives the history in one line: before a vowel, the old form ela lost its final -a, so ela agua became el agua. Over time that only survived before a stressed initial /a/.

Because the noun is still feminine, adjectives agree in the feminine: el agua fría, el águila majestuosa, el acta constitutiva. Demonstratives do too: esta agua, esa hacha, aquella águila. So do other determiners: mucha hambre, toda el área, poca agua.

The el and un forms are singular only. In the plural the article is las and the adjective is feminine plural: las aguas frías.

• Unstressed initial /a/. Nouns that start with an unstressed /a/ take la only: la abeja, la amapola, la habitación.
• Something between the article and the noun. El is used only when the article comes immediately before the noun: el agua fría, but la mejor agua; el hacha del leñador, but la afilada hacha. This holds even when the adjective itself begins with a stressed /a/: la alta haya, una amplia aula.
• Derivatives and compounds that lose the stress. La agüita, not el agüita; la aguamarina, not el aguamarina.
• Letters and names. The letters a and hache keep la (la a, la hache), and so do women’s names used with an article (la Ana). The RAE lists a few further exceptions involving people and place names.

⊗ marks a form the RAE says to avoid.

Arte also begins with a stressed /a/, but it isn’t a feminine noun that borrows el. The RAE says it can be used in both genders: in the singular it is normally masculine (el séptimo arte), and in the plural normally feminine (las artes marciales). In the sense of a set of rules for doing something well it is normally feminine even in the singular, and then it takes el by the rule above: el arte poética.

Checked against these RAE pages on 6 October 2026. Each Spanish example above is either quoted from them or applies the rule they state.

• Diccionario panhispánico de dudas — “el”, §§1, 2.1–2.3
• Nueva gramática básica — 9.2.1, Las formas del artículo femenino
• RAE, Dudas rápidas: “Si «agua» es femenino, ¿por qué se dice «el agua»?”
• Diccionario panhispánico de dudas — “arte”
• Diccionario de la lengua española (DLE) — the gender of each noun