From a verb a noun: -ción, -miento, -dad and kin
The units about quantity, progress and knowledge stand on nouns made from verbs: 'measurement', 'observation', 'achievement', 'accuracy'. Spanish makes them by rule, and once you know four suffixes you stop looking every word up. For example: “La medición del ruido llevó tres días de observación” — The noise measurement took three days of observation. A rule from the Spanish course: worked out on examples, not…
How it works
The units about quantity, progress and knowledge stand on nouns made from verbs: 'measurement', 'observation', 'achievement', 'accuracy'. Spanish makes them by rule, and once you know four suffixes you stop looking every word up.
-ción — the most frequent, always feminine: medir → la medición, observar → la observación, producir → la producción, contradecir → la contradicción. In the plural the written accent disappears: la observación → las observaciones. English builds the same nouns with '-ion'.
-miento — masculine, mostly from verbs in -ecer and -ir: conocer → el conocimiento, descubrir → el descubrimiento, crecer → el crecimiento, pensar → el pensamiento. English reaches for '-ment' here: 'conocimiento' — knowledge, 'descubrimiento' — discovery.
-dad and -eza make a noun not from a verb but from an adjective, also feminine: preciso → la precisión, regular → la regularidad, igual → la igualdad, pobre → la pobreza, triste → la tristeza.
There is a reverse move too, a short one: a noun with no suffix at all, straight from the verb's stem. Aumentar → el aumento, descender → el descenso, retrasar → el retraso, apoyar → el apoyo, gastar → el gasto. Such words are almost always masculine and sound more everyday than the long ones: in speech one says el aumento, in a report — el incremento.
Why this matters practically: in these spots English loves a verb where Spanish loves a noun ('after we measured' against tras la medición, 'when they arrived' against a la llegada). The phrase with the noun does not sound bookish in Spanish — it sounds natural, and it is one of the few places where a literal translation wrecks the style without breaking the grammar.
Table
| suffix | gender | built from | example |
|---|---|---|---|
| -ción | feminine | a verb | medir → la medición |
| -sión | feminine | a verb in -der, -tir | decidir → la decisión |
| -miento | masculine | a verb | descubrir → el descubrimiento |
| -dad | feminine | an adjective | regular → la regularidad |
| -eza | feminine | an adjective | pobre → la pobreza |
| no suffix | masculine | the verb's stem | aumentar → el aumento |
By example
- La medición del ruido llevó tres días de observaciónThe noise measurement took three days of observation
- El crecimiento de la ciudad se ve en el aumento del tráficoThe city's growth shows in the increase in traffic
- Tras la llegada del técnico, todo se arregló en diez minutosAfter the technician's arrival, everything got fixed in ten minutes
How the rule settles in your head
A rule is not memorized from an explanation. It is memorized from an attempt to use it and a mistake — that is why the app delivers it mixed in with words, not as a separate lesson: it resurfaces exactly where you forgot it.
Frequently asked
From a verb a noun: how does it work in Spanish?
The units about quantity, progress and knowledge stand on nouns made from verbs: 'measurement', 'observation', 'achievement', 'accuracy'. Spanish makes them by rule, and once you know four suffixes you stop looking every word up.
What does it look like in an example sentence Spanish?
“La medición del ruido llevó tres días de observación” — The noise measurement took three days of observation. A rule is easier to test on sentences like this than to memorize as a wording: what surfaces in conversation is the sentence.