Spanish Noun Suffixes

Spanish does not invent a fresh word every time it needs a noun. It takes a verb or an adjective it already has and bolts on a suffix, and the suffix carries a fixed meaning and a fixed gender. Construir (to build) becomes la construcción (the construction); real (real) becomes la realidad (the reality). Once you know the handful of productive suffixes, you can read a noun you have never met and guess both what it means and whether it takes el or la. For a B2 learner that is a large payoff: it turns thousands of abstract nouns from things to memorise into things to decode. This page walks through the suffixes one at a time.

The one table to keep

-ción and -sión: the action of a verb (feminine)

This is the most productive suffix in the whole language, and it is always feminine. It turns a verb into the noun for its action or its result:

• construir (to build) -> la construcción (the construction)
• decidir (to decide) -> la decisión (the decision)
• informar (to inform) -> la información (the information)
• educar (to educate) -> la educación (the education)

If you already know the English -tion word, you very often have the Spanish for free: nation is la nación, relation is la relación, all feminine. The -sión spelling is the same suffix after certain stems (decidir -> decisión, televisión), and it is feminine too.

-dad and -tad: the quality of an adjective (feminine)

Take an adjective, add -dad or -tad, and you get the abstract quality it names, always feminine:

• real (real) -> la realidad (reality)
• posible (possible) -> la posibilidad (possibility)
• libre (free) -> la libertad (freedom)
• difícil (difficult) -> la dificultad (difficulty)

These map onto English -ty the way -ción maps onto -tion: university is la universidad, liberty is la libertad. Feminine every time.

-miento and -mento: action or result (masculine)

Here the gender flips. -miento and -mento also turn a verb into the noun for its action or result, but they are masculine:

• mover (to move) -> el movimiento (the movement)
• sentir (to feel) -> el sentimiento (the feeling)
• conocer (to know) -> el conocimiento (the knowledge)
• pensar (to think) -> el pensamiento (the thought)

Nothing in the verb predicts whether it will take -ción or -miento, so you learn the noun as a unit. But the ending is still doing you a favour: the moment you see -miento, you know the word is masculine.

-ez and -eza: quality again (feminine)

Another pair that builds a quality out of an adjective, both feminine:

• rápido (fast) -> la rapidez (speed)
• bello (beautiful) -> la belleza (beauty)
• triste (sad) -> la tristeza (sadness)
• pobre (poor) -> la pobreza (poverty)

The short -ez (la rapidez, la vejez, old age) and the longer -eza (la belleza, la tristeza) are the same suffix in two shapes, both feminine.

-ura: quality or result (feminine)

-ura attaches to adjectives and to some verbs, and its nouns are feminine:

• alto (tall) -> la altura (height)
• escribir (to write) -> la escritura (writing, script)
• dulce (sweet) -> la dulzura (sweetness)
• ancho (wide) -> la anchura (width)

The meaning shifts between a quality (la dulzura, sweetness) and a concrete result (la escritura, a piece of writing), but the word is feminine either way.

-aje: action or collective (masculine)

Borrowed long ago from French, -aje is reliably masculine. It names an action, a process, or a collective quantity:

• aterrizar (to land) -> el aterrizaje (the landing)
• kilómetros (kilometres) -> el kilometraje (the mileage)
• el personaje (the character in a story), from persona

Any time you see -aje, reach for el.

-ería: shop or collective (feminine)

-ería is feminine and points at a shop, a trade, or a collective idea:

• pan (bread) -> la panadería (the bakery)
• libro (book) -> la librería (the bookshop)
• tonto (silly) -> la tontería (nonsense, a silly thing)

When you need the name of a shop, this is usually the ending: la carnicería (butcher's), la pastelería (cake shop), all feminine.

-ismo and -ista: doctrine and follower

The last pair works together. -ismo names a doctrine, system or movement, and it is masculine:

• real (real) -> el realismo (realism)
• turista (tourist) -> el turismo (tourism)

Its partner -ista names the person who follows the doctrine or does the job, and it is common gender: the word does not change, only the article does.

• el turista / la turista (the tourist)
• el periodista / la periodista (the journalist)
• el artista / la artista (the artist)

So -ismo is the thing and -ista is the person, and only -ista lets the article do the gender work.

The habit worth building

When you meet a new abstract noun, look at its ending before you look it up. If it finishes in -ción, -dad, -eza or -ura, it is feminine and names an action or a quality. If it finishes in -miento, -aje or -ismo, it is masculine. That single glance gives you the gender and half the meaning for free, which is what makes these suffixes worth learning as a set rather than one dusty word at a time.

See also

• Spanish noun gender - the -o/-a rule and the ending patterns these suffixes build on.
• Adjective agreement - how the gender these suffixes hand you cascades through the sentence.
• The Spanish grammar cheatsheet collects the productive suffixes and their genders on one card.