Nominalization in Portuguese

In Brief

Portuguese nominalization (nominalização) turns an action or quality into a noun: desenvolver “to develop” becomes desenvolvimento “development,” while possível “possible” becomes possibilidade “possibility.” It is especially common in reports, academic prose, news, and administration. Endings such as -ção, -mento, -dade, and -ncia are useful clues, but each noun must be learned with its spelling, gender, and usual prepositions.

Overview

A noun is a word used to name a person, thing, action, state, or idea. Nominalization creates a noun from another kind of word, most often a verb or adjective. Compare A empresa implementou o projeto (“The company implemented the project”) with a implementação do projeto pela empresa (“the implementation of the project by the company”). The event has not changed, but the verb implementou has been repackaged as the noun implementação.

This packaging is valuable at C1 because it lets a writer treat a whole action as one unit. A nominalized phrase can be the subject or object of a sentence, can follow a preposition, and can carry adjectives or other details: a rápida implementação do novo sistema. It also helps connect ideas across sentences: a report can first say that costs fell and then refer to essa redução (“that reduction”).

English does much the same with pairs such as “develop/development” and “possible/possibility,” so the basic idea is familiar. The difficulty is in the details. Portuguese does not offer one suffix that can be attached mechanically to every verb or adjective. The resulting noun has grammatical gender, spelling and stress may change, and the people or things connected to the original verb are normally introduced with prepositions—especially de and, for an explicit agent, por.

How It Works

Turning verbs into nouns

A verb-derived noun may name an action, a process, its result, or even something associated with it. The meaning must therefore be learned from use, not guessed from the ending alone.

Common ending or pattern	Examples	Typical gender	Frequent use
-ção, -são	implementar → implementação; reduzir → redução; decidir → decisão	feminine	action, process, or result
-mento	desenvolver → desenvolvimento; crescer → crescimento; pagar → pagamento	masculine	process or result
-ncia (-ância, -ência)	tolerar → tolerância; existir → existência	feminine	state, quality, or occurrence
-ada / -ida and related forms	chegar → chegada; sair → saída	often feminine	event, act, or result
Other lexical forms	melhorar → melhoria; escolher → escolha; perder → perda	word-specific	action, result, or abstract idea

These patterns are tendencies, not instructions for inventing words. Desenvolver gives desenvolvimento, not desenvolvição; melhorar gives melhoria, not melhoramento in every context. Melhoramento does exist, but often means a deliberate technical improvement or enhancement, whereas melhoria is the broad everyday and institutional noun for an improvement in quality or conditions.

Many forms also involve changes inside the stem. Compare produzir → produção, traduzir → tradução, expandir → expansão, and resolver → resolução. Recognizing a family of words is useful, but a dictionary or reliable corpus is safer than applying a suffix by analogy.

Turning adjectives into abstract nouns

An adjective describes a quality; its nominalization names that quality or state as an idea.

Adjective	Noun	English sense
possível	possibilidade	possibility
responsável	responsabilidade	responsibility
necessário	necessidade	necessity; need
igual	igualdade	equality
importante	importância	importance
eficiente	eficiência	efficiency
claro	clareza	clarity
simples	simplicidade	simplicity
seguro	segurança	safety; security

Nouns ending in -dade, -ção, and -ância/-ência are generally feminine: a possibilidade, a implementação, a importância. Nouns in -mento are generally masculine: o desenvolvimento, o funcionamento. Learn the article with the noun because it controls agreement: a possibilidade concreta but o desenvolvimento sustentável.

Building the noun phrase

Once formed, a nominalization behaves like another Portuguese noun. It can take an article, become plural, and be modified by an adjective or a phrase:

• implementar → a implementação
• a implementação rápida
• a rápida implementação do projeto
• as implementações previstas

The plural follows normal noun rules. In particular, nouns in -ção form the plural in -ções: redução → reduções, organização → organizações. Adjectives agree with the noun in gender and number: uma decisão importante; decisões importantes.

Portuguese frequently uses de after a nominalized noun. It contracts with a following definite article: de + o = do, de + a = da, de + os = dos, and de + as = das.

Verbal clause	Nominalized phrase	Relationship expressed
A economia desenvolveu-se.	o desenvolvimento da economia	the entity undergoing the process
O parlamento aprovou a lei.	a aprovação da lei pelo parlamento	affected item with de; agent with por
A equipa implementou o projeto.	a implementação do projeto pela equipa	affected item with de; agent with por
As condições melhoraram.	a melhoria das condições	the entity whose state changes

An agent is the person or organization that performs an action. If that agent must be stated clearly, por is often used and contracts as pelo, pela, pelos, or pelas: a decisão foi tomada pelo conselho; a aprovação da proposta pelo parlamento. This is not an absolute formula—individual nouns establish their own patterns—but it is a useful way to separate the doer from the affected item.

Nominalized clauses with de + infinitive

Portuguese can also place an infinitive—the basic verb form such as fazer or reformar—after a noun. This avoids creating a separate derived noun and often states the content of an idea or possibility:

• a possibilidade de reformar o sistema — “the possibility of reforming the system”
• a necessidade de reduzir os custos — “the need to reduce costs”
• a decisão de adiar a reunião — “the decision to postpone the meeting”

Do not confuse this with a phrase naming a thing: a possibilidade de uma reforma means “the possibility of a reform,” while a possibilidade de reformar o sistema focuses on carrying out the action.

Choosing between a verb and a noun

A verbal sentence usually makes the action and its participants easier to see:

• O governo analisou os dados e decidiu alterar a lei.
• “The government analyzed the data and decided to change the law.”

A nominalized version highlights concepts and can compress several relations:

• A análise dos dados levou à decisão de alterar a lei.
• “The analysis of the data led to the decision to change the law.”

Neither version is automatically better. The noun-based version suits a report discussing análise and decisão as stages in a process. The verbal version is often clearer when the reader needs to know who did what.

Examples in Context

Portuguese	English	Note
O desenvolvimento da economia depende de investimento estável.	The development of the economy depends on stable investment.	Desenvolver → desenvolvimento; masculine noun.
A melhoria das condições de trabalho continua a ser uma prioridade.	The improvement of working conditions remains a priority.	Melhorar → melhoria; das = de + as.
Existe a possibilidade de uma reforma fiscal.	There is a possibility of tax reform.	Adjective possível becomes possibilidade.
A implementação do projeto começará em setembro.	The implementation of the project will begin in September.	Formal process noun in -ção.
A redução dos custos não deve comprometer a qualidade.	The reduction in costs must not compromise quality.	Two abstract nouns: redução and qualidade.
A aprovação da proposta pelo conselho demorou três meses.	The approval of the proposal by the board took three months.	Da proposta marks what was approved; pelo conselho names the agent.
A empresa confirmou o encerramento de duas lojas.	The company confirmed the closure of two stores.	The noun phrase functions as the object of confirmou.
A clareza das instruções facilitou a execução da tarefa.	The clarity of the instructions made the task easier to carry out.	Two nominalizations make cause and result into concepts.
A segurança dos passageiros é a nossa principal preocupação.	Passenger safety is our main concern.	Seguro → segurança; the English structure need not use “of.”
A decisão de adiar a reunião foi comunicada ontem.	The decision to postpone the meeting was announced yesterday.	De + infinitive gives the content of the decision.
O crescimento rápido da cidade criou novos desafios.	The city’s rapid growth created new challenges.	The adjective agrees with masculine crescimento.
A investigação demonstrou a eficácia do tratamento.	The research demonstrated the effectiveness of the treatment.	Eficaz → eficácia; investigação is common in European Portuguese.
Essa alteração exige a atualização dos documentos.	That change requires the documents to be updated.	Nominalizations can form a concise instruction.
A excessiva concentração de responsabilidades atrasou o processo.	The excessive concentration of responsibilities delayed the process.	Dense formal style; the adjectives specify the abstract nouns.

Common Mistakes

Inventing a noun by attaching the most familiar suffix

• Wrong: o desenvolvição da região
• Right: o desenvolvimento da região
• Why: Suffix choice is lexical: it belongs to the individual word family. Learn desenvolver–desenvolvimento as a pair rather than treating -ção as a universal conversion rule.

Using the wrong gender

• Wrong: o implementação rápido do sistema
• Right: a implementação rápida do sistema
• Why: Implementação is feminine, so its article and adjective must also be feminine. By contrast, desenvolvimento is masculine: o desenvolvimento rápido.

Forgetting contractions with de

• Wrong: a melhoria de as condições
• Right: a melhoria das condições
• Why: Portuguese contracts de with definite articles: do, da, dos, das. English “of the” remains two words, so this is an easy English-based error.

Making the doer ambiguous

• Unclear: a avaliação dos professores
• Clear, if students evaluate them: a avaliação dos professores pelos alunos
• Clear, if they perform it: a avaliação dos alunos pelos professores
• Why: A de phrase can be interpreted in more than one way. Add an explicit agent with por, or rewrite the idea as a verbal clause when the context does not resolve it.

Copying an English cognate without checking Portuguese

• Wrong: a responsibilidade da direção
• Right: a responsabilidade da direção
• Why: Related English and Portuguese nouns may look similar, but their spelling and stress are not identical. Useful families still need to be learned in their Portuguese form: responsável–responsabilidade.

Packing too many actions into abstract nouns

• Heavy: A realização da avaliação da implementação do programa permitiu a identificação de falhas.
• Clearer: Ao avaliar como o programa foi implementado, a equipa identificou falhas.
• Why: Several nested nominalizations can hide the action and tire the reader. Formal style calls for precision, not the maximum possible number of nouns.

Usage Notes

Nominalizations are frequent in academic articles, contracts, public policy, technical instructions, business communication, and journalism. They let a text classify recurring ideas—aprovação, implementação, avaliação—and then refer back to them with expressions such as essa decisão or tal alteração. They are also useful after prepositions: após a conclusão do estudo, durante a execução do projeto, sem a autorização do diretor.

In conversation, a verb is often more natural and direct. Compare the institutional Procederemos à análise do pedido (“We will proceed with the analysis of the request”) with the simpler Analisaremos o pedido (“We will analyze the request”). The longer form may be appropriate in an official procedure, but it can sound bureaucratic in an ordinary exchange.

European and Brazilian Portuguese share the main derivational system, but vocabulary preferences may differ. For example, academic “research” is commonly investigação in Portugal and pesquisa in Brazil. Such choices are lexical and regional; they do not change the grammar of nominalization.

Accent marks matter. Forms such as redução, decisão, importância, eficiência, and saída must retain their written accents. The stress of the noun may not match the stress pattern you expect from the source word, so record and pronounce the whole noun rather than only memorizing its suffix.

Beyond the Basics / Advanced Use

Nominalization changes information structure

Changing a verb into a noun is not merely replacing one word. It reorganizes the sentence. In Os preços aumentaram rapidamente (“Prices increased rapidly”), os preços is plainly the subject and aumentaram states the event. In O rápido aumento dos preços preocupou os consumidores, the entire event becomes the subject of a new verb, preocupou. This allows Portuguese to discuss the event as a cause, consequence, stage, problem, or object of evaluation.

Nominalization can also support cohesion—the way sentences connect. After O banco reduziu as taxas, the next sentence can begin Essa redução.... The noun summarizes the previous proposition and provides a stable topic. This pattern is especially common in analytical writing.

The derived noun may develop its own meaning

A nominalization does not always mean simply “the act of doing the verb.” Conhecimento can mean knowledge, not just an act of knowing; administração can refer to management as an activity or to the group that manages; formação can mean formation, education, or professional training. Context and collocations—the words that habitually occur together—determine the intended sense.

Different nouns from a related base can also coexist. Fecho may mean closure or fastening and is especially common in European Portuguese; fechamento is widespread in Brazilian Portuguese for closing or closure; fechadura is a lock. Their shared connection with fechar does not make them interchangeable.

Agent, affected participant, and ambiguity

A verb assigns clear grammatical roles: A comissão avaliou o projeto. In the noun phrase a avaliação do projeto pela comissão, do projeto names what was evaluated and pela comissão names who evaluated it. But real language is not always so neatly marked: a crítica do diretor may mean criticism made by the director or criticism directed at the director. Formal writers should resolve consequential ambiguity by using por/pelo/pela, adding context, or restoring a verb.

Nominal style as a rhetorical choice

Nominalization can make prose sound impersonal because the agent may disappear: Foi autorizada a divulgação dos resultados does not say who authorized it. That can be useful when the procedure or result matters more than the decision-maker. It can also conceal responsibility. At an advanced level, ask not only whether a noun phrase is grammatical, but what it foregrounds and what it leaves unsaid.

Good formal Portuguese therefore balances nominal and verbal structures. Use a nominalization when the action must be classified, modified, compared, or referred to later. Prefer a finite verb—a verb marked for tense and person—when the doer and the sequence of actions need to remain visible.

Practice Tips

1. Build word-family cards. Record the source word, noun, article, and one typical phrase together: desenvolver → o desenvolvimento económico; possível → a possibilidade de + infinitive. This trains form, gender, and construction at once.
2. Rewrite in both directions. Turn A equipa implementou o plano into a implementação do plano pela equipa, then turn dense noun phrases back into clauses. Check what becomes the focus and whether any agent disappears.
3. Collect real collocations. In reports or quality newspapers, note combinations such as tomar uma decisão, proceder à avaliação, possibilidade de, and redução de custos. A suffix tells you how a word looks; its collocations tell you how Portuguese actually uses it.

Related Concepts

• Prerequisite: Gender of Nouns — nominalized forms are nouns, so their articles and modifiers depend on grammatical gender.