Finding the right synonym for “that” can make your writing clearer, smoother, and more natural.
Depending on the sentence, alternatives include which, who, whom, those, such, the, it, this, and the fact that. However, “that” performs several grammatical functions, so the best replacement depends on whether it introduces a clause, identifies a person or thing, refers to something previously mentioned, or expresses a degree or result.
This guide explains the most useful alternatives, their meanings, and how to choose the right word for everyday conversations, academic writing, professional communication, and creative expression.
Quick Answer: What Is a Synonym for That?
Common alternatives for “that” include which, who, whom, those, such, the fact that, and this. The correct choice depends on how the word functions in a sentence. Use “which” to introduce certain clauses about things, “who” for people, “those” for plural things or people, and “the fact that” when emphasizing a statement or situation. In many sentences, “that” has no direct replacement and can simply be omitted.
What Does “That” Mean?
“That” is a versatile word in English that can function as a determiner, pronoun, conjunction, or adverb. Its meaning changes according to its grammatical role and the context in which it appears.
For example:
- Determiner: That book belongs to Sarah.
- Pronoun: That looks interesting.
- Conjunction: I believe that he is honest.
- Adverb: The room was not that large.
Because “that” has multiple grammatical functions, no single synonym works in every situation. Understanding its role before selecting an alternative helps you avoid awkward sentences and grammatical mistakes.
Why Learning Synonyms for That Matters
Learning alternatives to “that” can improve your vocabulary, sentence structure, and overall writing quality. However, replacing every occurrence with another word is not always necessary.
Choosing an appropriate alternative can help you:
- Reduce unnecessary repetition in longer passages.
- Make academic and professional writing more precise.
- Improve transitions between ideas.
- Create more natural dialogue and conversational English.
- Understand the differences between relative pronouns, demonstratives, and conjunctions.
The goal is not to eliminate “that” but to use it where it communicates your meaning most effectively.
30+ Synonyms and Alternatives for That
The following words and expressions are useful alternatives in particular grammatical or contextual situations.
| Alternative | Meaning or function | Best context |
| Which | Identifies or adds information about a thing | Relative clauses |
| Who | Refers to a person | People |
| Whom | Refers to a person as an object | Formal grammar |
| Whose | Indicates possession | People or things |
| This | Refers to something nearer or currently discussed | Demonstrative reference |
| Those | Refers to plural people or things | Demonstrative reference |
| Such | Refers to a particular kind or degree | Formal and descriptive writing |
| The fact that | Emphasizes a statement or situation | Academic and professional writing |
| The idea that | Introduces a belief or proposition | Argumentative writing |
| The claim that | Introduces an assertion | Research and analysis |
| The belief that | Introduces an opinion or conviction | Explanatory writing |
| The notion that | Introduces a concept or assumption | Academic discussion |
| The statement that | Introduces reported information | Formal writing |
| The possibility that | Introduces a potential situation | Analytical writing |
| The reason that | Introduces an explanation | General writing |
| It | Refers to an already identified thing or idea | Pronoun reference |
| They | Refers to plural people or things | Pronoun reference |
| These | Refers to nearby or currently discussed plural items | Demonstratives |
| Those which | Refers to a particular subset of things | Formal contexts |
| In which | Expresses a relationship to a place, situation, or context | Formal writing |
| At which | Identifies a point or event | Time and location |
| By which | Explains a method or process | Technical writing |
| Through which | Explains a means or channel | Academic writing |
| Because | Gives a reason | Causal sentences |
| Since | Introduces a reason or time relationship | General writing |
| As | Expresses a reason or relationship | Formal and conversational English |
| So | Expresses a result or consequence | Informal and general writing |
| Therefore | Signals a conclusion or result | Formal writing |
| Namely | Introduces specific identification | Explanatory writing |
| Specifically | Narrows or clarifies meaning | Professional writing |
| The one | Identifies a particular person or thing | Conversational English |
| The particular | Emphasizes a specific item | Descriptive writing |
| The same | Indicates identity or similarity | Comparisons |
Important: These are context-dependent alternatives, not interchangeable synonyms. For example, “because” may replace a causal use of “that” in certain sentence structures, but it cannot replace the demonstrative in “that car.”
Best Alternatives to That by Context
1. Everyday Conversation
In daily English, “that” often points to something, refers to an earlier statement, or introduces an idea.
Useful alternatives: this, it, those, such, the one.
Examples:
- Original: That looks delicious.
-
Alternative: This looks delicious.
Use “this” when the thing is nearer or more immediate. - Original: I didn’t know that.
-
Alternative: I didn’t know about it.
Use “it” when referring to previously mentioned information. - Original: I want that one.
-
Alternative: I want the one over there.
Use “the one over there” to identify a particular object.
Best tip: In conversations, use the word that fits the situation rather than choosing a more sophisticated alternative unnecessarily.
2. Professional Writing
Professional writing benefits from precise references and clear explanations. Replacing “that” with a longer expression can sometimes make a sentence more explicit.
Useful alternatives: the fact that, the point that, the claim that, which, specifically.
Examples:
- Original: We recognize that the deadline is important.
- Alternative: We recognize the importance of the deadline.
- Original: The report shows that sales increased.
- Alternative: The report indicates an increase in sales.
- Original: We appreciate that you contacted us.
- Alternative: We appreciate your contacting us.
These revisions improve sentence structure instead of merely swapping one word for another.
Best tip: In emails, reports, and proposals, prioritize clarity, concision, and a professional tone.
3. Academic Writing
Academic writing often requires explicit relationships between evidence, claims, and conclusions.
Useful alternatives: the fact that, the hypothesis that, the assumption that, the possibility that, which.
Examples:
- Original: The results suggest that the method is effective.
- Alternative: The results suggest the effectiveness of the method.
- Original: Researchers argue that the policy needs revision.
- Alternative: Researchers argue for revising the policy.
- Original: The study demonstrates that sleep affects concentration.
- Alternative: The study demonstrates an association between sleep and concentration.
The final example changes the wording and may also change the strength of the claim. Use such revisions only when the evidence supports them.
Best tip: Avoid adding phrases such as “the fact that” when a shorter construction communicates the same meaning.
4. Business Communication
Business writing needs direct language, clear responsibilities, and practical outcomes.
Useful alternatives: the expectation that, the requirement that, the understanding that, therefore, specifically.
Examples:
- Original: We agreed that the project would begin Monday.
- Alternative: We agreed on a Monday start date.
- Original: The team confirmed that the figures were correct.
- Alternative: The team verified the figures.
- Original: The client requested that we revise the proposal.
- Alternative: The client requested a revision to the proposal.
Best tip: Whenever possible, replace a lengthy clause with a clear noun or verb without changing the intended meaning.
5. Creative and Literary Writing
Creative writing uses demonstratives, pronouns, and descriptive expressions to manage rhythm, emphasis, and point of view.
Useful alternatives: this, such, the one, the very thing, which.
Examples:
- Original: That was the moment everything changed.
- Alternative: This was the moment everything changed.
- Original: She remembered that strange feeling.
- Alternative: She remembered the strange sensation.
- Original: He wanted that which he could never possess.
- Alternative: He wanted what he could never possess.
Best tip: Read the sentence aloud. A good alternative should preserve the mood and rhythm as well as the meaning.
Important Synonyms for That: Meaning, Tone, and Examples
Which
Meaning: A relative pronoun or determiner used to identify things or introduce certain additional information.
Tone: Neutral to formal.
Best contexts: Academic writing, explanations, technical documentation, and descriptive sentences.
Common collocations: which method, which option, which means, in which, through which.
Examples:
- The device, which was recently tested, performed well.
- We need to determine which approach is more effective.
Grammar note: “Which” can replace “that” in some relative clauses, but not all. In standard American English, “that” commonly introduces restrictive clauses, while “which” often introduces nonrestrictive clauses set off by commas.
Who
Meaning: A relative pronoun referring to a person as the subject of a clause.
Tone: Neutral.
Best contexts: Descriptions of people, biographies, and professional communication.
Common collocations: the person who, the employee who, someone who.
Examples:
- The woman who called yesterday is our manager.
- He is the researcher who developed the method.
Grammar note: Use “who” for people when the person performs the action in the relative clause. Do not use it as a universal substitute for “that.”
Such
Meaning: Of the type or degree previously mentioned or indicated.
Tone: Neutral to formal.
Best contexts: Descriptive, persuasive, and academic writing.
Common collocations: such as, such a problem, such circumstances, such behavior.
Examples:
- We have never faced such a challenge.
- Such decisions require careful consideration.
Grammar note: “Such” often describes a kind, degree, or example rather than directly replacing a demonstrative pronoun.
The Fact That
Meaning: An expression that presents a statement or situation as a fact.
Tone: Formal and explanatory.
Best contexts: Reports, essays, business writing, and analytical discussions.
Common collocations: acknowledge the fact that, despite the fact that, recognize the fact that.
Examples:
- The fact that prices increased surprised customers.
- Despite the fact that it was raining, the event continued.
Grammar note: Do not overuse this phrase. “Although it was raining” is more concise than “despite the fact that it was raining.”
This
Meaning: A demonstrative used for a singular person, object, or idea considered near, immediate, or currently relevant.
Tone: Neutral.
Best contexts: Conversation, presentations, explanations, and references to a current point.
Common collocations: this idea, this approach, this situation, this means.
Examples:
- This is the solution we need.
- This approach may reduce unnecessary costs.
Grammar note: “This” and “that” can express different distances or perspectives. Changing one to the other may alter the intended meaning.
Those
Meaning: The plural demonstrative form of “that,” referring to particular people or things.
Tone: Neutral.
Best contexts: Comparisons, explanations, and descriptions of groups.
Common collocations: those people, those results, those involved, those who.
Examples:
- Those results require further investigation.
- Those who arrive early can choose their seats.
Grammar note: Use “those” for plural references. It does not replace every singular use of “that.”
That vs. Related Words: Key Differences
| Word | Main function | Example |
| That | Identifies something or introduces a clause | I know that she is ready. |
| Which | Refers to things or introduces a relative clause | The book, which is new, is mine. |
| Who | Refers to people as subjects | The student who won is here. |
| This | Points to a singular, near, or immediate reference | This is my favorite. |
| Those | Points to plural references | Those are expensive. |
| What | Refers to a thing or information, often without a stated antecedent | I understand what you mean. |
| Because | Introduces a reason | We left because it was late. |
| Such | Expresses a kind or degree | Such behavior is unacceptable. |
That vs. Which
“That” commonly identifies information essential to a sentence, while “which” often introduces additional information.
- Restrictive: The car that has a red roof belongs to me.
- Nonrestrictive: My car, which has a red roof, belongs to me.
The first sentence identifies which car. The second adds information about a car already identified.
That vs. Who
Use “who” when referring to a person in the subject position of a relative clause.
- Correct: The teacher who helped me was kind.
- Also possible: The teacher that helped me was kind.
Both can be grammatical when referring to a person in a defining relative clause, but “who” is generally the clearer and more natural choice in formal writing.
That vs. What
“That” often refers to an already identified noun or introduces a clause. “What” can mean “the thing that.”
- I know that you are busy.
- I understand what you need.
These sentences perform different functions, so the words cannot simply be exchanged.
That vs. Because
“Because” expresses a reason. “That” may introduce a clause after verbs such as know, think, believe, and say.
- I believe that she is right.
- I left because I was tired.
Replacing “that” with “because” would change the relationship between the ideas.
How to Choose the Right Synonym for That
Use this simple context-selection framework to find the most natural alternative.
| If “that” is used to… | Consider… | Example |
| Refer to a person | Who | The person who called |
| Refer to a thing in a relative clause | Which or that | The tool that works |
| Point to a nearby or current item | This | This is useful |
| Refer to several items | Those | Those are important |
| Introduce a belief or statement | The idea that, the belief that | The belief that change is possible |
| Introduce a reason in a suitable construction | Because, since, as | We stayed because it rained |
| Add unnecessary clause wording | Omitting “that” | She said (that) she agreed |
Before making a substitution, ask three questions:
- What is the grammatical role? Is “that” a determiner, pronoun, conjunction, or adverb?
- What is the intended meaning? Does it identify something, introduce information, or express degree?
- Who is the reader? Would a direct, conversational, or formal construction be most appropriate?
This three-step method prevents unnatural substitutions and preserves the sentence’s intended meaning.
Can You Remove That Instead of Replacing It?
Yes. In many English sentences, “that” can be omitted when it introduces a noun clause and the meaning remains clear.
Examples:
- With “that”: I think that he is correct.
- Without “that”: I think he is correct.
Another example:
- With “that”: She said that she would arrive early.
- Without “that”: She said she would arrive early.
However, omission is not always possible or advisable.
- Correct: The book that I borrowed is interesting.
- Incorrect in standard written English: The book I borrowed is interesting?
The second sentence is actually grammatical as a defining relative clause because “that” is the object of “borrowed.” The important distinction is that omission depends on clause structure, not a blanket rule that “that” can always be removed.
In formal writing, retain “that” when it improves clarity, especially when a sentence contains several clauses or could be misread.
Common Mistakes When Using Synonyms for That
1. Replacing every occurrence with “which.”
Incorrect substitutions can create ungrammatical sentences or change meaning. Identify the grammatical function before choosing a replacement.
2. Using “who” for objects.
Use “who” for people, not ordinary inanimate objects. For example, write “the machine that stopped,” not “the machine who stopped.”
3. Overusing “the fact that.”
This expression can make writing unnecessarily wordy. Prefer a direct verb or shorter clause when possible.
4. Confusing “that” with “because.”
“That” may introduce reported information, while “because” normally introduces a reason. Their meanings are not equivalent.
5. Ignoring singular and plural agreement.
Use “this” or “that” for singular demonstrative references and “these” or “those” for plural references.
6. Removing “that” when clarity suffers.
Although omission is often acceptable, keeping the word can make a complex sentence easier to understand.
Practical Writing Tips for Better Word Choice
- Prioritize meaning over variety. A synonym is useful only when it preserves the intended message.
- Prefer concise expressions. “Although it was late” is usually better than “despite the fact that it was late.”
- Use precise references. Replace an unclear “that” with a specific noun when readers might not understand what it refers to.
- Check punctuation. Relative clauses introduced by “which” may require commas when they add nonessential information.
- Read for naturalness. If an alternative sounds forced, the original word may be the better choice.
- Review the whole sentence. Sometimes changing the sentence structure produces a better result than replacing a single word.
A useful editing rule is to improve clarity first, concision second, and vocabulary variety third.
Frequently Asked Questions About That Synonym
What is the best synonym for that?
There is no single best synonym. “Which,” “who,” “this,” “those,” and “such” are useful in different grammatical situations. Choose the word that preserves the original meaning and sentence structure.
What is another word for that in formal writing?
Depending on the context, formal alternatives include “which,” “the fact that,” “the assertion that,” “the possibility that,” and “the notion that.” These expressions are not interchangeable, so select one that accurately conveys the intended relationship.
What can I use instead of that in a sentence?
You may use “which” for certain clauses about things, “who” for people, “this” for a current or nearby reference, or “the fact that” to emphasize a statement. You can also omit “that” in many noun clauses.
Is “which” always a synonym for “that”?
No. “Which” and “that” overlap in some relative clauses, but their usage differs according to sentence structure, punctuation, and style. Neither word is a universal replacement for the other.
What is the difference between that and this?
Both can identify people, things, or ideas. “This” often signals something near, immediate, or currently relevant, whereas “that” can signal greater distance or refer to something already mentioned. The exact distinction depends on context.
Can “that” be removed from a sentence?
Yes. For example, “I know that she is ready” can become “I know she is ready.” However, “that” cannot be omitted in every grammatical construction, and retaining it may improve clarity.
What are the antonyms of that?
“That” has no single direct antonym because it performs several grammatical functions. In demonstrative use, “this” can express a contrasting sense of proximity, but it is a contrast rather than a strict antonym.
How can I improve my vocabulary with synonyms for that?
Learn alternatives in complete sentences rather than memorizing isolated words. Study their grammatical roles, compare examples, and practice rewriting sentences without changing their meaning.
Final Thoughts
Understanding “that synonym” requires more than memorizing a list of alternative words. Because “that” can identify an object, refer to an idea, introduce a clause, or express degree, the best replacement depends on its grammatical role and intended meaning.
Use “who” for people, “which” for appropriate relative clauses, “this” and “those” for demonstrative references, and expressions such as “the fact that” when additional emphasis is genuinely needed. In many cases, keeping “that” or removing it entirely is the most natural solution.
The best writing is not the writing with the most synonyms. It is the writing that communicates the intended meaning accurately, naturally, and clearly.
Michael Anderson is a USA-based research writer who specializes in creating detailed, easy-to-understand articles. He focuses on reliable information, clear explanations, and content that answers readers’ questions effectively.
