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English can present the same meaning in more than one grammatical form. An action stated by a verb can be recast as a noun so that the action itself, rather than the person performing it, becomes the focus of the sentence.
This shift is known as nominalization in English. It affects word formation, sentence structure, and the way actions, qualities, and ideas are organized in formal and academic writing.
What Is Nominalization?
Nominalization is the process of forming a noun from another word, especially a verb or an adjective.
For example:
- decide → decision
- kind → kindness
- possible → possibility
Compare:
They decided to leave.
Their decision surprised us.
In the first sentence, decided functions as a verb and states the action directly. In the second, decision presents that action as a noun and allows it to function as the subject of the sentence.
Nominalization therefore changes not only the word class but often the grammatical structure built around the new noun.
Nominalization of Verbs
Many verbs have related noun forms that present an action, process, event, or result as a noun.
For example:
- improve → improvement
- arrive → arrival
- refuse → refusal
- perform → performance
- choose → choice
- grow → growth
Compare:
The manager approved the plan.
The manager’s approval of the plan came yesterday.
In the first sentence, approved carries the main action and takes the plan as its object. After nominalization, approval becomes the central noun, while of the plan connects that noun to what was approved.
The change can also affect other word forms:
The company expanded rapidly.
The company’s rapid expansion created new jobs.
Here, expanded becomes expansion. The adverb rapidly changes to the adjective rapid because it now modifies the noun expansion.
Nominalizing a verb can therefore reshape an entire clause into a noun phrase rather than simply replace one word.
Nominalization of Adjectives
Adjectives can also form related nouns that express a quality, state, condition, or characteristic.
For example:
- happy → happiness
- strong → strength
- patient → patience
- accurate → accuracy
- important → importance
Compare:
The method is effective.
The effectiveness of the method was clear.
In the first sentence, effective describes the method. In the second, effectiveness turns that quality into a noun, while of the method identifies what has the quality.
The same change appears here:
The measurements were accurate.
The accuracy of the measurements was checked carefully.
The adjective accurate becomes the noun accuracy, allowing the quality itself to occupy a central grammatical position in the sentence.
Common Nominalization Suffixes and Other Form Changes
Many nominalized nouns are formed with common noun-forming suffixes.
- -tion / -sion: inform → information, permit → permission
- -ment: agree → agreement, employ → employment
- -al: withdraw → withdrawal, renew → renewal
- -ance / -ence: appear → appearance, exist → existence
- -ness: weak → weakness, dark → darkness
- -ity: equal → equality, responsible → responsibility
- -cy: fluent → fluency, private → privacy
Other words undergo a larger change in spelling or form:
- lose → loss
- speak → speech
- choose → choice
- grow → growth
- deep → depth
- high → height
These endings can help learners recognize relationships between words, but noun formation is not completely predictable. A suffix that forms one noun cannot automatically be attached to every related verb or adjective.
For example:
decide → decision
not:
decidement ✗
Similarly:
strong → strength
not normally:
strongness ✗
The established noun form is therefore best learned together with its related verb or adjective.
How Nominalization Changes Sentence Structure
Nominalization often requires several grammatical adjustments because a noun combines with surrounding words differently from a verb or adjective.
Compare:
The team responded quickly to the complaint.
The team’s quick response to the complaint solved the problem.
Several changes occur:
- responded → response
- quickly → quick
- the team → the team’s
The verb responded becomes the noun response, so quickly can no longer modify it as an adverb. The adjective quick is required instead.
Nominalization can also change how the people or things involved in an action are connected to the new noun.
The committee rejected the proposal.
The committee’s rejection of the proposal caused concern.
In the first sentence, the proposal functions as the object of rejected. After nominalization, the same information is linked to rejection through of.
Adjective nominalization can reorganize a clause in a similar way:
The system is reliable.
The reliability of the system is important.
The adjective reliable becomes the noun reliability, and the original subject is incorporated into the noun phrase as of the system.
Nominalization should therefore be treated as a structural change, not as a mechanical one-word substitution.
Nominalization in Formal and Academic Writing
Formal and academic writing frequently uses nominalization to place an action, process, result, or concept at the center of a sentence.
Compare:
Researchers analyzed the data.
The analysis of the data revealed several trends.
The first sentence places the focus on researchers and what they did. The second centers the sentence on the analysis, allowing the process itself to become the grammatical subject.
Nominalization can also connect ideas across sentences by turning an earlier action into a noun that can be developed further.
The company expanded rapidly last year. This expansion created several new jobs.
The noun expansion refers back to expanded and turns the earlier action into a topic for the next sentence.
It can also reduce emphasis on the person responsible for an action:
The committee decided to postpone the meeting.
The decision to postpone the meeting was announced yesterday.
The second sentence focuses on the decision rather than on the committee that made it.
However, nominalization does not automatically improve formal writing. Too many nominalized nouns can produce long noun phrases and make actions less direct.
Compare:
The committee made a recommendation for the postponement of the meeting.
The committee recommended postponing the meeting.
The second version states the action more clearly.
Nominalization is most effective when the noun form helps organize information, connect ideas, or place the appropriate action or concept in focus.
How to Identify Nominalization
Identifying nominalization requires attention to both the noun form and its grammatical role in the sentence.
First, look for a noun that expresses an action, process, quality, state, or result:
- movement
- accuracy
- development
Then identify the related verb or adjective:
movement ← move
accuracy ← accurate
development ← develop
Finally, check whether the word functions as a noun in the sentence:
The movement surprised everyone.
Her accuracy improved with practice.
The development took several years.
Each highlighted word occupies a noun position, even though it is related to a verb or adjective.
Suffixes can provide useful clues, but grammatical function gives stronger evidence than appearance alone.
Common Mistakes with Nominalization
1. Using the wrong noun form
Their decide surprised everyone. ✗
Their decision surprised everyone. ✓
The sentence requires a noun, so the verb decide must change to the established noun decision.
2. Keeping verb structure after forming a noun
The approval the plan came yesterday. ✗
The approval of the plan came yesterday. ✓
The verb approve can take the plan directly as its object.
FAQs About Nominalization in English
Why is nominalization common in academic writing?
Nominalization allows an action, process, quality, or result to become a noun and take a central position in the sentence. This helps writers connect ideas, discuss abstract concepts, and maintain focus across sentences.
Is nominalization always better than using a verb?
No. A nominalized form is useful when the action or idea itself needs emphasis, but a direct verb is often clearer when the action is more important than the noun form.
Compare:
The committee made a decision to postpone the meeting.
The committee decided to postpone the meeting.
The second sentence is more direct.
How can I recognize a nominalized noun?
Look for a noun that is related to a verb or adjective and expresses an action, process, quality, state, or result.
For example:
develop → development
accurate → accuracy
strong → strength
Suffixes can provide clues, but the word must also function as a noun in the sentence.
Can nominalization change other words in a sentence?
Yes. Nominalization often changes the structure around the new noun.
Compare:
The company expanded rapidly.
The company’s rapid expansion created new jobs.
Here, expanded becomes expansion, while the adverb rapidly changes to the adjective rapid.
Is a gerund the same as nominalization?
Not exactly. A gerund is an -ing form that functions in a noun-like role:
Swimming is good exercise.
Nominalization is broader and includes many noun forms derived from verbs or adjectives:
decide → decision
strong → strength
A gerund can therefore have a nominal function, but nominalization is not limited to -ing forms.
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