The Appositive “That”|How to Explain the Content of a Noun

In English, when I want to explain the specific content of a noun, I use the appositive “that.”
A clause beginning with “that” explains the content of the preceding noun, and the noun and the that-clause are in an “=” relationship.
In this lesson, I will explain the basic usage of the appositive “that” with example sentences.
1. What Is the Appositive “That”?
The appositive “that” is placed after a noun to clarify its content, essentially saying, “The content of this noun is …”. It links the entire clause to the noun, making the meaning clearer.
- The fact that he passed the exam surprised everyone.
In this sentence, “the fact” and “he passed the exam” express the same content. In other words: the fact = that he passed the exam.
2. Common “Noun + That” Combinations
The appositive that is frequently used with certain nouns. The most common examples include:
- the fact that 〜
- the idea that 〜
- the news that 〜
- the possibility that 〜
- the rumor that 〜
- the hope that 〜
3. Difference from the Relative Pronoun “That”
The appositive “that” is often confused with the relative pronoun “that.” Although they look the same, their roles in a sentence are quite different.
3-1. Appositive “That”
The appositive “that” explains the content of the preceding noun. The noun and the that-clause stand in an “=” relationship.
- The fact that he is sick is true.
 → Here, the fact = he is sick.
3-2. Relative Pronoun “That”
By contrast, the relative pronoun “that” modifies the preceding noun. The noun and the that-clause are not equal, but related.
- The book that he is reading is interesting.
Here, “that he is reading” modifies the noun “the book”. The meaning is not “the book = what he is reading” but rather, “the book (among many books) that he is reading is interesting.”
4. Expanding the Use of the Appositive “That”
4-1. Making Abstract Nouns More Concrete
The appositive “that” is especially effective when making abstract nouns more specific.
- The belief that hard work pays off motivates people.
- The evidence that he was at the scene is clear.
4-2. Common in Written English
While not frequently used in everyday conversation, the appositive “that” appears often in essays, academic writing, and news articles.
- The conclusion that the Earth is warming is undeniable.
5. Summary
- The appositive “that” introduces a clause that explains the content of a noun.
- Common nouns used with this structure: fact, idea, news, possibility, rumor, hope, belief, evidence, etc.
- Unlike the relative pronoun “that,” which modifies a noun, the appositive “that” establishes an “=” relationship between the noun and the that-clause.





