Why the Question “What Is This Noun?” Causes Confusion
What is this noun? This compact question can be interpreted in two ways. A learner may be pointing to a word and asking which noun it is, or may be asking whether the word this itself belongs to the noun category. The second interpretation is especially common in grammar exercises, editing questions, and searches made by students learning parts of speech.
The clearest answer is that “this” is not normally a noun. A noun names a person, place, object, idea, quality, or event: researcher, university, manuscript, clarity, and submission are nouns. “This,” by contrast, points to or identifies something. It can appear immediately before a noun, as in “this manuscript,” or replace an understood noun phrase, as in “This needs revision.”
Why does the distinction matter? In everyday conversation, a listener often understands what “this” refers to from the physical situation. Academic and professional writing gives readers fewer contextual clues. A sentence such as “This demonstrates the problem” may be grammatically complete, yet still be unclear when the preceding paragraph contains several results, claims, or limitations. Understanding the role of “this” helps a writer create precise references and stronger links between sentences.
The terminology can also vary. Traditional grammar lessons may call “this” a demonstrative adjective when it modifies a noun. Many modern grammars prefer demonstrative determiner, because “this” appears in the determiner position and identifies which member of a noun category is intended. When it stands alone, it is called a demonstrative pronoun. The terminology may differ, but the practical test remains straightforward: look at what comes after “this” and determine whether the word is pointing to a named noun or replacing the full noun phrase.
This guide provides direct definitions, comparison tables, editing tests, examples, mini case studies, and an academic-writing checklist. It also explains when expert English editing support can help improve pronoun reference and sentence clarity without changing an author’s intended meaning.
Quick Answer: Is “This” a Noun?
No. “This” is usually a demonstrative determiner or a demonstrative pronoun. It is a determiner in “this noun,” because it comes before and identifies the noun. It is a pronoun in “This is a noun,” because it stands alone and refers to an understood word, object, or idea.
A noun names something; “this” points to something. In “this research paper,” the noun phrase is “this research paper,” the head noun is “paper,” and “this” is the demonstrative determiner.
Key Takeaways
- “This” does not ordinarily function as a noun in standard English.
- Before a noun, “this” is a demonstrative determiner: “this chapter.”
- When standing alone, “this” is a demonstrative pronoun: “This is important.”
- Traditional textbooks may use the term “demonstrative adjective.”
- “This” is singular; its plural counterpart is “these.”
- Academic writers should replace vague “this” with “this + summary noun” when the reference is unclear.
- The correct label depends on the word’s function in the sentence, not only its dictionary form.
What This Page Covers
- Noun versus pronoun
- Determiner versus adjective
- Sentence-level grammar tests
- “This,” “that,” “these,” and “those”
- Academic reference clarity
- Editing examples and FAQs
Methodology and Academic Sources
This article applies standard English grammar distinctions used in contemporary dictionaries, university writing resources, and academic editing practice. Because terminology differs across school traditions, it explains both the traditional label “demonstrative adjective” and the modern label “demonstrative determiner.”
Writers may compare the explanation with the Cambridge Grammar discussion of demonstratives, the Purdue OWL pronoun resources, and the Merriam-Webster entry for “this”. Course rubrics and institutional style expectations should take priority where a specific terminology is required.
What Does “This” Mean in English Grammar?
“This” is a demonstrative word that identifies something relatively near, current, immediate, or prominent in the conversation. The closeness may be physical, temporal, textual, or psychological.
Physical closeness
“Please review this page.” The speaker indicates a nearby or visible page.
Time closeness
“This semester is demanding.” The speaker refers to the current semester.
Textual closeness
“This result supports the model.” The phrase points back to a recently stated result.
Psychological closeness
“I value this approach.” The speaker presents the approach as immediate or relevant.
Demonstratives help listeners and readers identify a referent. They do not usually supply the lexical name of that referent. That is why “this” is different from a noun such as “method,” “student,” or “evidence.”
The Two Main Grammar Roles of “This”
1. “This” as a demonstrative determiner
“This” is a demonstrative determiner when it appears before a singular noun. It narrows the noun’s reference by indicating a particular member of the category.
| Sentence | Determiner | Head noun | Meaning |
|---|---|---|---|
| This noun is abstract. | this | noun | A particular noun is being identified. |
| This chapter needs editing. | this | chapter | The current or indicated chapter is meant. |
| This evidence is limited. | this | evidence | A specific body of evidence is meant. |
| This research question is too broad. | this | question | The indicated research question is selected. |
In each example, removing the noun leaves “this” able to stand as a pronoun, but the original sentence uses “this” to determine the noun. The noun remains the central naming word in the noun phrase.
2. “This” as a demonstrative pronoun
“This” is a demonstrative pronoun when it stands in place of a noun phrase. It can function as the subject, object, or complement of a clause.
- Subject: “This is accurate.”
- Object: “The editor noticed this.”
- Complement: “The main concern is this.”
- Reference to an idea: “The sample was too small. This limited the analysis.”
How Can You Tell Whether “This” Is a Pronoun or Determiner?
Use a position-and-replacement test. First, check whether a noun follows “this.” Then ask whether “this” identifies that noun or replaces a complete noun phrase.
- Find “this” in the sentence. Ignore your first impression and examine the surrounding words.
- Look immediately after it. If a noun or an adjective-plus-noun sequence follows—“this complex problem”—“this” is a determiner.
- Check whether it stands alone. If no noun follows and “this” fills a noun-phrase position, it is a pronoun.
- Identify the referent. Ask what object, idea, event, sentence, or situation the demonstrative points to.
- Test the sentence for clarity. Replace vague “this” with “this + summary noun” if readers could choose more than one referent.
Applying the test
Consider: “The review identified inconsistent citations and several incomplete references. This required correction.” Here, “this” is a pronoun, but its reference could mean the inconsistent citations, the incomplete references, or the combination. A clearer version is: “These citation and reference problems required correction.”
Now consider: “This citation problem required correction.” The word “this” is a determiner, and “problem” is the noun. The added noun summarizes the preceding information and tells the reader exactly how to interpret it.
How “This” Compares with “That,” “These,” and “Those”
English has four central demonstratives, organized by number and relative distance. “This” and “that” are singular; “these” and “those” are plural.
| Word | Number | Typical distance | Determiner example | Pronoun example |
|---|---|---|---|---|
| This | Singular | Near/current | This paragraph is clear. | This is clear. |
| That | Singular | More distant/earlier | That paragraph was unclear. | That was unclear. |
| These | Plural | Near/current | These findings matter. | These matter. |
| Those | Plural | More distant/earlier | Those findings were excluded. | Those were excluded. |
The near–far distinction is flexible. In academic prose, “this study” usually means the current study, while “that study” often refers to a previously mentioned or more distant study. Writers should not rely on demonstratives alone when multiple studies are under discussion; naming the author, year, method, or finding may be clearer.
Using “This” Clearly in Academic and Research Writing
In academic writing, “this” should create a precise bridge between information rather than force readers to guess. The strongest technique is to pair it with a summary noun.
| Vague version | Improved version | Why it is clearer |
|---|---|---|
| The response rate fell after week three. This affected the findings. | The lower response rate affected the findings. | Names the exact condition. |
| Three variables were removed. This improved the model. | This variable-selection decision improved the model. | Explains what action “this” represents. |
| The samples came from one institution. This is a limitation. | This single-institution sample is a limitation. | Connects the judgment to the relevant feature. |
| Participants reported stress and fatigue. This was unexpected. | This pattern of reported stress and fatigue was unexpected. | Summarizes both findings as a pattern. |
Useful summary nouns after “this”
Common choices include result, finding, pattern, trend, limitation, difference, relationship, assumption, decision, method, approach, explanation, evidence, observation, response, and interpretation. The best noun does more than repeat information; it tells the reader how the writer classifies that information.
During research paper editing, an editor may check whether every demonstrative has an obvious referent, whether singular and plural forms agree, and whether summary nouns accurately represent the author’s reasoning. Ethical editing improves expression while leaving the research decisions and claims with the author.
Common Mistakes to Avoid with “This”
Mistake 1: Calling every subject a noun
A word can be the subject of a sentence without being a noun. In “This works,” “this” is the subject, but its word class is pronoun. Sentence function and part of speech are related concepts, not identical labels.
Mistake 2: Ignoring the noun after “this”
In “this noun,” “noun” is the noun. “This” limits or identifies it. The same logic applies to “this carefully designed experiment”: the head noun is “experiment,” “designed” is part of an adjective phrase, and “this” is the determiner.
Mistake 3: Using singular “this” with ordinary plural nouns
Write “these results,” not “this results.” Some collective or mass nouns take singular agreement, but ordinary countable plural nouns require “these.”
Mistake 4: Leaving the antecedent unclear
When a paragraph contains several possible referents, bare “this” may interrupt comprehension. Add a summary noun or repeat the specific term.
Mistake 5: Treating terminology as more important than function
A course may prefer “demonstrative adjective,” while another uses “demonstrative determiner.” State the framework being used and apply it consistently. The practical grammatical observation is the same: “this” precedes and identifies a noun.
Mistake 6: Overusing “this” at the start of sentences
Repeated “This shows… This means… This suggests…” can make prose monotonous and logically weak. Vary sentence structures and state the causal or evidential relationship directly.
Practical Examples and Mini Case Studies
Identifying the noun in “this noun”
Situation: A student is asked to label every word in “This noun is countable.”
Confusion: The student labels “this” as a noun because it comes first.
Correct approach: “This” is a demonstrative determiner, “noun” is the head noun, “is” is a linking verb, and “countable” is a subject complement.
Editorial lesson: Classify a word by its function and distribution, not only its position.
Repairing vague reference
Situation: A thesis paragraph reports a small sample, missing values, and a short observation period.
Confusion: The next sentence says, “This limits generalizability.”
Correct approach: Write, “Together, these sampling and observation constraints limit generalizability.”
Editorial lesson: Explicit summary nouns make the logical link visible.
Correcting number agreement
Situation: An author writes, “This findings support the hypothesis.”
Confusion: The singular demonstrative is paired with a plural noun.
Correct approach: Use “These findings support the hypothesis,” or singularize both elements: “This finding supports the hypothesis.”
Editorial lesson: Demonstratives must agree in number with countable nouns.
Grammar and Academic Editing Checklist
Check every use of “this”
- Does a singular noun follow “this”?
- If no noun follows, is the pronoun’s referent unmistakable?
- Would “this + summary noun” make the sentence more precise?
- Does “this” agree in number with the noun?
- Is “that,” “these,” or “those” more appropriate?
- Have you avoided a repetitive series of “This shows” sentences?
- Does the summary noun accurately describe the previous statement?
- Does your course or style guide prefer “determiner” or “adjective” terminology?
- Can an unfamiliar reader identify the referent without seeing your notes or figures?
When Professional Editing May Be Useful
Professional editing is useful when grammar is technically correct but the chain of reference remains difficult to follow. This often occurs in literature reviews, methodology chapters, result discussions, and reviewer-response letters, where many studies, variables, and claims appear close together.
A suitable editor can check demonstrative reference, noun-phrase structure, number agreement, sentence flow, and disciplinary tone. Contentxprtz provides ethical academic editing services and research paper proofreading for writers who need language support while retaining full ownership of their arguments and conclusions.
Need clearer grammar and stronger sentence links?
Get reader-focused editing that improves clarity, consistency, and pronoun reference without changing your intended meaning.
Summary: What Is “This” Noun?
The phrase “what is this noun” may ask which word is a noun or whether “this” is a noun. In standard grammar, “this” is not normally a noun. It is a demonstrative determiner when followed by a noun—“this noun,” “this paper,” “this method”—and a demonstrative pronoun when it stands independently—“This is correct.”
For academic writing, the more important issue is often reference clarity. Bare “this” is acceptable when one obvious idea precedes it. When several ideas could be selected, use a precise summary noun such as “this result,” “this limitation,” or “this methodological decision.”
Frequently Asked Questions
These answers clarify the most common questions about whether “this” is a noun and how demonstratives work in academic English.
Is “this” a noun?
No. In standard English grammar, “this” is usually a demonstrative determiner when it comes before a noun, as in “this article,” or a demonstrative pronoun when it stands alone, as in “This is useful.” It points to a particular person, object, idea, place, or situation. The noun is the word being named, such as “article,” while “this” identifies which article the speaker means.
What part of speech is “this” in “this noun”?
In the phrase “this noun,” the word “this” is a demonstrative determiner. It modifies the noun “noun” by identifying a specific noun that is close in space, time, thought, or conversation. Some traditional grammar books call it a demonstrative adjective, but “demonstrative determiner” is the more precise modern label.
When is “this” a pronoun?
“This” is a demonstrative pronoun when it replaces a noun phrase and stands independently. In “This belongs to me,” the word “this” functions as the subject and points to an understood object or idea. It does not name that object, so it remains a pronoun rather than becoming a noun.
Can “this” be an adjective?
Traditional school grammar may call “this” a demonstrative adjective in phrases such as “this book.” Modern grammar usually classifies it as a demonstrative determiner because it occupies the determiner position before a noun. Both labels may appear in textbooks, but writers should follow the terminology required by their course or institution.
What is the difference between “this” and “these”?
“This” is singular, while “these” is plural. Use “this” with one nearby or current item, as in “this result,” and “these” with more than one, as in “these results.” The same number agreement applies when they stand alone: “This is correct” and “These are correct.”
What is the difference between “this” and “that”?
Both words are demonstratives. “This” usually points to something relatively near, current, or psychologically close, while “that” often points to something more distant or previously mentioned. The contrast may involve physical distance, time, discourse, or attitude rather than literal location.
Can “this” refer to a whole sentence or idea?
Yes. “This” can refer back to a complete statement, event, finding, or argument. However, academic writers should make the reference explicit when more than one possible antecedent exists. Instead of writing “This proves the hypothesis,” write “This statistically significant increase supports the hypothesis” when precision is needed.
Why do editors flag vague uses of “this”?
Editors flag vague “this” because readers may not know which noun, claim, or event the word refers to. A sentence beginning with “This shows” can be clear when the previous sentence contains one obvious idea, but it becomes ambiguous when several findings are discussed. Adding a summary noun such as “this pattern,” “this result,” or “this limitation” improves cohesion.
Should I write “this data” or “these data”?
In formal academic contexts that treat “data” as the plural of “datum,” “these data” is traditionally preferred. In general and many professional contexts, “data” is often treated as a mass noun, making “this data” common. Follow the usage expected by your discipline, journal, or style guide, and remain consistent.
How can Contentxprtz help with grammar and pronoun clarity?
Contentxprtz can review academic or professional writing for grammar, sentence clarity, cohesion, pronoun reference, terminology, and style consistency. Ethical editing preserves the author’s meaning and responsibility while helping readers understand the argument more easily. The appropriate level of editing depends on the document and its submission requirements.
Conclusion
The word “this” points; a noun names. Remembering that distinction makes the classification easier. Before a noun, “this” is a demonstrative determiner. Standing alone, it is a demonstrative pronoun. In longer academic documents, use the same grammatical knowledge to strengthen cohesion: make every “this” point to one clear idea, and add a meaningful summary noun whenever the reader could hesitate.
Clear reference is not merely a grammar detail; it is part of clear reasoning.