This is the consolidated reference page. The cluster of pages on Spanish noun gender — overview, masculine patterns, feminine patterns, exceptions, ambiguous pairs, people and professions — covers each topic in depth. This page pulls everything together into one decision tree and one set of comprehensive tables.
Use this as the page you bookmark for quick lookup. For deeper explanation of any single mechanism, follow the link to the dedicated page.
The decision tree
When you encounter a new Spanish noun and need to determine its gender, ask these questions in order:
- Does the noun refer to a person or named animal? If yes, the gender follows the referent. Check whether the noun uses suffix alternation (-o / -a), suffix addition (-or / -ora), common gender (article only), or a lexical pair. See Género de personas.
- Does the noun appear on the short list of meaning-changing ambiguous pairs? Capital, cura, orden, frente, corte, cólera, coma, pendiente, guía, policía, radio — if yes, the gender depends on the meaning. See Género ambiguo.
- Does the noun appear on the short list of exceptions? El día, el mapa, el sofá, el planeta, el problema and the other Greek -ma nouns, la mano, la foto, la moto, la radio, la disco — if yes, you have memorised the gender as a lexical item.
- Otherwise, apply the ending rule. Check the table below for the most reliable patterns.
- If no ending rule applies clearly, default to masculine. Spanish defaults to masculine when gender is unclear, but this is a fallback — most nouns hit one of the ending patterns.
This sequence is the system. Working through it on every new noun is slow at first; with practice you stop noticing the steps because the patterns become automatic.
Reliable patterns at a glance
Feminine endings (high reliability)
| Ending | Reliability | Examples | Exceptions |
|---|---|---|---|
| -ción / -sión | Near-absolute | la canción, la nación, la decisión, la presión | practically none |
| -dad / -tad | Absolute | la ciudad, la verdad, la libertad, la amistad | none |
| -tud | Absolute | la juventud, la actitud, la virtud, la multitud | none |
| -umbre | Absolute | la costumbre, la cumbre, la legumbre | none |
| -ie | Absolute | la serie, la especie, la superficie | none |
| -ez | Strong | la vejez, la niñez, la timidez, la rapidez | el ajedrez |
| -ia / -ía | Strong | la familia, la alegría, la energía, la geografía | el día, el tranvía |
| -a (unstressed) | Strong | la casa, la mesa, la silla, la ventana | el día, el mapa, el sofá, the Greek -ma group |
Masculine endings (high reliability)
| Ending | Reliability | Examples | Exceptions |
|---|---|---|---|
| -o (unstressed) | Strong | el libro, el coche, el dinero, el momento | la mano, la foto, la moto, la radio, la disco |
| -or | Strong | el amor, el dolor, el calor, el motor | la flor, la labor, la coliflor |
| -aje | Absolute | el viaje, el garaje, el coraje, el aterrizaje | none |
| -ón (not -ción) | Strong | el corazón, el camión, el jamón, el balcón | la razón, la canción (-ción), la sazón |
| -ma (Greek origin) | Strong within this class | el problema, el sistema, el tema, el idioma | la cama, la rama, la palma, la fama (non-Greek) |
| -l (most) | Mostly masculine | el papel, el árbol, el sol, el control | la sal, la cárcel, la miel, la piel, la señal |
| Days, months, colours | Absolute | el lunes, el enero, el rojo, el azul | none |
| Numbers, infinitives as nouns | Absolute | el dos, el cien, el comer, el saber | none |
| Rivers, seas, mountains | Strong | el Ebro, el Tajo, el Mediterráneo, el Pirineo | most island names are feminine |
Cada lunes, el profesor de literatura empieza la clase con un poema de Machado.
Every Monday, the literature teacher starts class with a poem by Machado. — *lunes* (masc., day), *profesor* (masc., male teacher), *literatura* (fem., -tura), *clase* (fem., -e but conventional), *poema* (masc., Greek -ma).
La universidad ofrece una asignatura nueva sobre la historia del Mediterráneo.
The university is offering a new course on the history of the Mediterranean. — *universidad* (fem., -dad), *asignatura* (fem., -ura), *historia* (fem., -ia), *Mediterráneo* (masc., sea name).
The closed exception lists
Masculine words ending in -a
The complete high-frequency list to memorise:
- Greek-origin -ma words: el problema, el sistema, el tema, el idioma, el programa, el clima, el drama, el poema, el dilema, el diploma, el síntoma, el lema, el diagrama, el esquema, el fantasma, el enigma, el teorema, el panorama, el aroma.
- Other common -a masculines: el día, el mapa, el sofá, el planeta, el cometa (the astronomical object), el tranvía, el guardia (the male officer).
Feminine words ending in -o
The complete high-frequency list:
- Apocopated feminines: la foto (fotografía), la moto (motocicleta), la radio (radiodifusión), la disco (discoteca), la polio (poliomielitis), la poli (policía, colloquial).
- Other common -o feminines: la mano, la libido, la dinamo, la modelo (referring to a female fashion model).
Feminine words taking el in the singular
Feminine singular nouns starting with stressed a- or ha- take the article el in the singular only:
el agua, el águila, el alma, el ala, el arma, el ave, el hacha, el hambre, el aula, el área, el asa, el haba, el habla, el hada, el arpa.
The noun is feminine throughout — adjectives are feminine, plural articles are las — only the singular article shifts. See Excepciones de género for the full picture.
Meaning-changing pairs
| Form | Masculine meaning | Feminine meaning |
|---|---|---|
| capital | el capital — money, principal | la capital — capital city |
| cura | el cura — priest | la cura — cure |
| orden | el orden — sequence, arrangement | la orden — command, religious order |
| frente | el frente — front (military, weather) | la frente — forehead |
| corte | el corte — cut; embarrassment | la corte — court (royal, legal) |
| cólera | el cólera — the disease | la cólera — anger, wrath |
| pendiente | el pendiente — earring | la pendiente — slope |
| coma | el coma — medical coma | la coma — comma |
| cometa | el cometa — comet | la cometa — kite |
| guía | el guía — male guide (person) | la guía — guidebook; female guide |
| radio | el radio — radius; chemical element | la radio — radio (medium / device) |
| policía | el policía — male officer | la policía — police force; female officer |
Fluctuating pairs (same meaning, different gender)
| Noun | Peninsular default | Alternative | Notes |
|---|---|---|---|
| mar | el mar | la mar | la mar is poetic, sailor's, or in set expressions (la mar de) |
| azúcar | el azúcar | la azúcar | both accepted; adjectives often feminine even with el |
| calor | el calor | la calor | la calor is regional (Andalusia) and non-standard |
| sartén | la sartén | el sartén (LatAm) | la sartén is the only correct peninsular form |
| internet | el internet / Ø | la internet | often no article; el more common when one is used |
| arte | el arte (sg.) / las artes (pl.) | — | gender flips with number, idiosyncratic |
| maratón | el maratón | la maratón | both accepted |
| lente | la lente (single lens) | los lentes (LatAm, eyeglasses) | Spain uses las gafas for eyeglasses |
Gender of people
Quick reference:
| Mechanism | Pattern | Examples |
|---|---|---|
| Suffix alternation | -o / -a | hijo / hija, amigo / amiga, abogado / abogada, médico / médica |
| Suffix addition | consonant + a | profesor / profesora, español / española, león / leona |
| Common gender (article only) | same form | el/la estudiante, el/la dentista, el/la artista, el/la testigo, el/la modelo |
| Lexical pair | different word | padre / madre, rey / reina, caballo / yegua, toro / vaca |
| Recently feminised | new -a form accepted | la jueza, la presidenta, la médica, la abogada, la ministra |
| Epicene (animals) | fixed grammatical gender + macho/hembra | la jirafa macho, el águila hembra |
La jueza dictó sentencia tras escuchar al testigo principal del caso.
The (female) judge issued the ruling after hearing the principal witness in the case. — *jueza* (recent feminisation), *testigo* (common gender, here male).
Mi cuñada y mi primo trabajan los dos en la misma agencia inmobiliaria del barrio.
My sister-in-law and my cousin both work at the same neighbourhood real estate agency. — *cuñada* (-o/-a suffix), *primo* (-o/-a suffix).
Peninsular-specific points
Several gender facts apply specifically to peninsular Spanish and differ from Latin American varieties:
- La sartén (peninsular) vs el sartén (parts of LatAm).
- El ordenador for computer (peninsular) vs la computadora (most LatAm) — different gender because different word.
- La piscina (peninsular) vs la alberca (Mexico) for swimming pool — both feminine, but the lexical choice differs.
- Las gafas (peninsular) vs los lentes / los anteojos (LatAm) for eyeglasses — gender follows the lexical choice.
- El móvil (peninsular) vs el celular (LatAm) — both masculine, different words.
These are vocabulary differences with gender consequences. Within peninsular Spanish, the gender of each word is fixed.
Vosotros and gender agreement
Peninsular Spanish uses vosotros / vosotras for second-person plural informal, and the agreement still follows gender:
Vosotros tres venís conmigo, y vosotras dos os quedáis aquí con María.
You three (m. or mixed) come with me, and you two (f.) stay here with María. — *vosotros* for male/mixed group, *vosotras* for all-female group.
¿Estáis todos cansados después del viaje?
Are you all tired after the trip? — *todos cansados* for a mixed or male group; *todas cansadas* would imply all female.
The Latin American ustedes form does not distinguish gender on the pronoun, only on adjectives. The peninsular system gives you one extra signal to work with. See pronouns/personal-pronouns for the full system.
A worked example: identifying gender in a paragraph
Take this sample sentence and walk through every noun:
El estudiante de medicina dejó la mochila en la silla del aula y salió corriendo a la cafetería.
The medical student left his/her backpack on the chair in the classroom and ran off to the cafeteria.
Going noun by noun:
- estudiante — common-gender noun, gender shown by article el (male student in this case).
- medicina — -ina ending, feminine; the field of study (also a fixed feminine category: sciences).
- mochila — -a ending, feminine, no exception triggered.
- silla — -a ending, feminine, no exception triggered.
- aula — feminine noun starting with stressed a-, hence el aula singular, but plural las aulas and feminine adjective: el aula vacía.
- cafetería — -ía ending, feminine.
Five out of six nouns followed standard patterns; only aula triggered the phonetic el-before-stressed-a rule. This is typical: most sentences contain only one or two nouns that test the exception lists, and the rest are straightforwardly handled by the endings.
The reliability ranking, all in one place
If you have to remember one ordered list, this is it. Endings are listed from most to least reliable:
- -ción, -sión, -dad, -tad, -tud, -umbre, -ie → feminine. Effectively zero risk.
- -aje → masculine. Zero risk.
- Days, months, colours, numbers, infinitives → masculine. Zero risk.
- -ma (Greek-origin abstract noun) → masculine. Reliable within the class.
- -or → masculine, with the small list la flor, la labor, la coliflor as exceptions.
- -a unstressed → feminine, with the Greek -ma and small irregular list as exceptions.
- -o unstressed → masculine, with mano, foto, moto, radio, disco as exceptions.
- -ez, -ía, -ia → feminine. A few exceptions: el ajedrez, el día, el tranvía.
- -l, -n, -r, -s → mostly masculine but with enough exceptions (la sal, la cárcel, la imagen, la flor, la crisis) that you should check.
- -e → about 60% masculine, 40% feminine. Always check.
Endings 9 and 10 are the weakest predictors. Words ending in -e especially need to be learned individually: la calle, la noche, la clase, la gente, la frente, la suerte are feminine; el coche, el viaje, el aire, el padre, el monte, el restaurante are masculine. There is no quick rule for -e nouns; you simply learn them as lexical items.
Common mistakes
❌ La día está soleada y caliente.
*Día* is masculine — *el día* — and the adjective must be masculine: *soleado y caliente*.
✅ El día está soleado y caliente.
The day is sunny and warm.
❌ Me he comprado un moto nueva para ir a trabajar.
*Moto* is feminine (short for *motocicleta*) — *una moto nueva*.
✅ Me he comprado una moto nueva para ir a trabajar.
I bought a new motorbike to get to work.
❌ La problema es que no tenemos suficiente tiempo.
*Problema* is masculine — Greek origin.
✅ El problema es que no tenemos suficiente tiempo.
The problem is we don't have enough time.
❌ El sartén está sucio, ¿lo friegas tú?
In peninsular Spanish, *sartén* is feminine — *la sartén sucia*.
✅ La sartén está sucia, ¿la friegas tú?
The frying pan is dirty — are you going to wash it?
❌ La capital del banco es de origen alemán.
If you mean financial capital, the word is masculine — *el capital*. *La capital* is the capital city.
✅ El capital del banco es de origen alemán.
The bank's capital is of German origin.
❌ Vimos un águila negro en la sierra.
*Águila* is feminine, takes *el* in the singular only as a phonetic accommodation. The adjective must be feminine: *negra*.
✅ Vimos un águila negra en la sierra.
We saw a black eagle in the mountains.
How this compares with English
English speakers learning Spanish gender confront three challenges that have no English parallel:
- Gender is grammatical, not natural. A table has no biological gender, but in Spanish it is feminine, and that feminine status triggers a chain of agreement (articles, adjectives, pronouns). English's "natural gender" intuition does not transfer.
- You cannot remain neutral. English allows the student without committing to a gender; Spanish forces el estudiante or la estudiante. The system requires a choice in nearly every noun phrase.
- The agreement is invisible in English. The new table tells you nothing about table's gender; la mesa nueva / las mesas nuevas changes both the article and the adjective in ways an English speaker has to learn to monitor actively.
The way through is the same as for any other grammatical feature: install the patterns, memorise the exceptions, and let the system become reflexive through use. Six months of regular reading and listening puts most of the gender system on autopilot.
Key takeaways
- Spanish noun gender is systematic, not random. Endings predict gender reliably for the great majority of nouns; the exceptions form a small, closed, learnable list.
- The decision tree: person/animal → ambiguous pair → exception → ending rule → default masculine.
- The most reliable feminine endings are -ción, -sión, -dad, -tad, -tud, -umbre, -ie; the most reliable masculine endings are -o, -or, -aje, plus the categories of days, months, colours, numbers, and infinitives.
- The closed exception lists are: Greek -ma nouns (masculine), the día / mapa / sofá / planeta set (masculine), the mano / foto / moto / radio / disco set (feminine), and the agua / águila / alma / hambre class (feminine but takes el in the singular).
- A small group of nouns uses gender to distinguish meaning (el capital / la capital, el cura / la cura, el orden / la orden, el frente / la frente, el coma / la coma) and another small group fluctuates (el / la mar, el / la azúcar, el / la maratón).
- For people, Spanish uses four mechanisms — suffix alternation, suffix addition, common gender, and lexical pairs — plus a continuing process of feminising titles (la jueza, la presidenta, la médica).
- Peninsular-specific points: la sartén (Spain) vs el sartén (parts of LatAm); the use of vosotros / vosotras with gendered agreement in informal plural; vocabulary differences (el ordenador, las gafas, el móvil) that carry their own gender.
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Start learning Spanish→Related Topics
- Género de los sustantivos: visión generalA1 — Every Spanish noun is masculine or feminine — gender drives the article, the adjective, and the pronoun. An introduction for English speakers who have never met grammatical gender before.
- Patrones masculinosA1 — The reliable patterns that mark a Spanish noun as masculine — -o, -or, -aje, -ón, and the Greek-origin -ma group, plus the fixed categories (days, months, languages, colours, rivers, seas).
- Patrones femeninosA1 — The reliable endings that mark a noun as feminine in Spanish — -a, -ción, -dad, -tud, -umbre, -ez, -ie — with the high-frequency exceptions that every learner must memorise.
- Excepciones de géneroA2 — The high-frequency nouns whose gender breaks the usual ending rules — masculine -a nouns from Greek, feminine -o nouns, and the *el agua* class of feminine words that take a masculine article.
- Género ambiguo: el mar / la marB1 — Nouns whose gender changes the meaning — *el capital* / *la capital*, *el cura* / *la cura*, *el orden* / *la orden* — plus the smaller group of nouns that accept either gender without changing meaning.
- Género de personas: el estudiante / la estudianteA2 — How Spanish marks the gender of nouns referring to people — the -o/-a pairs, the common-gender nouns marked only by the article, the recently feminised forms like *la jueza* and *la presidenta*, and the gender-inclusive debate in modern peninsular usage.