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Therefore vs. Thus: What's the Difference?

Edited by Huma Saeed || By Sawaira Riaz || Updated on October 2, 2023
Used to introduce a logical conclusion from that which has already been stated. Indicates an inference and is also used to denote something has been stated before.

Key Differences

"Therefore" serves as a conjunctive adverb to introduce a conclusion that’s derived directly from the preceding information. "Thus," while similar, can also imply a manner or method and be utilized to illustrate how something is done, not just why.
Sawaira Riaz
Oct 02, 2023
"Thus" can establish an outcome or result, but additionally, it introduces the means by which something comes about. Conversely, "therefore" is exclusively a result indicator, always paving the way to a consequent deduction based strictly on preceding data.
Sawaira Riaz
Oct 02, 2023
When wielding "therefore," the outcome is typically unavoidable or highly probable based on the preceding facts. On the other hand, "thus" could illuminate a method, being sometimes interchangeable with words like “so” or “thereby,” unlike "therefore."
Sawaira Riaz
Oct 02, 2023
"Therefore" is largely employed when the speaker aims to assert a logical correlation between two statements. Contrastingly, "thus" can communicate a causal relationship but can also serve to describe the way something is done.
Harlon Moss
Oct 02, 2023
When writers use "therefore," it is to lead readers directly to a logical deduction, often following an “if…, then…” structure. "Thus," while it does suggest results or outcomes, is pliable, even able to indicate the way or manner of an action’s occurrence.
Harlon Moss
Oct 02, 2023
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Comparison Chart

Principal Usage

Introducing a logical conclusion.
Denoting inference and sometimes indicating manner/method.
Sawaira Riaz
Oct 02, 2023

Implied Certainty

Implies a certain outcome based on preceding facts.
Does not always suggest certain outcomes.
Sawaira Riaz
Oct 02, 2023

Method Indication

Does not illustrate method or manner.
Can indicate method or manner of action.
Sawaira Riaz
Oct 02, 2023

Interchangeability

Less flexible, not easily replaced by “so” or “like”.
Can often be swapped with “so” or “thereby”.
Sawaira Riaz
Oct 02, 2023

Formality Level

Generally considered formal.
Slightly less formal and more versatile in use.
Harlon Moss
Oct 02, 2023
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Therefore and Thus Definitions

Therefore

"Therefore" denotes an inevitable result.
He missed the bus, therefore he was late.
Harlon Moss
Oct 02, 2023

Thus

"Thus" indicates a manner or way something is done.
He spoke softly and thus was not heard.
Aimie Carlson
Oct 02, 2023

Therefore

"Therefore" signals a consequent action or result.
The roads were icy, therefore driving was dangerous.
Aimie Carlson
Oct 02, 2023

Thus

"Thus" suggests an implied result.
He whispered, thus it was hard to hear him.
Sara Rehman
Oct 02, 2023

Therefore

"Therefore" is used to introduce a conclusion.
It was raining, therefore, we stayed indoors.
Janet White
Oct 02, 2023

Thus

"Thus" connects actions with unintended consequences.
The keys were left inside, thus the door couldn’t be opened.
Sara Rehman
Oct 02, 2023

Therefore

"Therefore" links cause and direct effect.
The package was delayed, therefore it arrived late.
Sawaira Riaz
Oct 02, 2023

Thus

"Thus" introduces an inferred outcome.
He forgot his wallet, thus he couldn’t pay the bill.
Aimie Carlson
Oct 02, 2023

Therefore

"Therefore" precedes an effect or outcome.
She studied hard, therefore she passed her exams.
Harlon Moss
Oct 02, 2023

Thus

"Thus" describes a method or process.
He lowered his voice, thus creating a sense of intimacy.
Sawaira Riaz
Oct 02, 2023

Therefore

For that reason or cause; consequently or hence.
Sawaira Riaz
Oct 26, 2022

Thus

In this manner
Lay the pieces out thus. See Usage Note at thusly.
Sawaira Riaz
Oct 26, 2022

Therefore

(conjunctive) Consequently, by or in consequence of that or this cause; referring to something previously stated.
Traditional values will always have a place. Therefore, they will never lose relevance.
Sawaira Riaz
Oct 26, 2022

Thus

To a stated degree or extent; so.
Sawaira Riaz
Oct 26, 2022

Therefore

For that; for it (in reference to a previous statement)
Sawaira Riaz
Oct 26, 2022

Thus

Therefore; consequently
Thus it was necessary for me to resign.
Sawaira Riaz
Oct 26, 2022

Therefore

For that or this reason, referring to something previously stated; for that.
I have married a wife, and therefore I can not come.
Behold, we have forsaken all, and followed thee; what shall we have therefore?
Sawaira Riaz
Oct 26, 2022

Thus

For example
Few of the nation's largest cities are state capitals.
Thus neither New York nor Chicago is the seat of its state's government.
Sawaira Riaz
Oct 26, 2022

Therefore

Consequently; by consequence.
He blushes; therefore he is guilty.
Sawaira Riaz
Oct 26, 2022

Thus

(manner) In this way or manner.
If you throw the ball thus, as I’m showing you, you’ll have better luck hitting the target.
Sawaira Riaz
Oct 26, 2022

Therefore

(used to introduce a logical conclusion) from that fact or reason or as a result;
Therefore X must be true
The eggs were fresh and hence satisfactory
We were young and thence optimistic
It is late and thus we must go
The witness is biased and so cannot be trusted
Sawaira Riaz
Oct 26, 2022

Thus

(conjunctive) As a result.
I have all the tools I need; thus, I will be able to fix the car without having to call a mechanic.
Sawaira Riaz
Oct 26, 2022

Therefore

As a consequence;
He had good reason to be grateful for the opportunities which they had made available to him and which consequently led to the good position he now held
Sawaira Riaz
Oct 26, 2022

Thus

The commoner kind of frankincense, or that obtained from the Norway spruce, the long-leaved pine, and other conifers.
Sawaira Riaz
Oct 26, 2022

Thus

In this or that manner; on this wise.
Thus did Noah; according to all that God commanded him, so did he.
Thus God the heaven created, thus the earth.
Sawaira Riaz
Oct 26, 2022

Thus

To this degree or extent; so far; so; as, thus wise; thus peaceble; thus bold.
Thus far extend, thus far thy bounds.
Sawaira Riaz
Oct 26, 2022

Thus

An aromatic gum resin obtained from various Arabian or East African trees; formerly valued for worship and for embalming and fumigation
Sawaira Riaz
Oct 26, 2022

Thus

(used to introduce a logical conclusion) from that fact or reason or as a result;
Therefore X must be true
The eggs were fresh and hence satisfactory
We were young and thence optimistic
It is late and thus we must go
The witness is biased and so cannot be trusted
Sawaira Riaz
Oct 26, 2022

Thus

In the way indicated;
Hold the brush so
Set up the pieces thus
Sawaira Riaz
Oct 26, 2022

FAQs

Is "therefore" a conjunction or an adverb?

"Therefore" is primarily used as an adverb, but it functions like a conjunction in linking ideas.
Sawaira Riaz
Oct 02, 2023

Is it appropriate to use "therefore" in formal writing?

Yes, it's often used in formal and logical arguments or explanations.
Sawaira Riaz
Oct 02, 2023

Should there be a comma before and/or after "therefore"?

Often, yes. When used in the middle of a sentence to separate ideas, it's typically surrounded by commas.
Sawaira Riaz
Oct 02, 2023

What does "therefore" mean?

It means "for that reason" or "as a consequence."
Sawaira Riaz
Oct 02, 2023

How do you use "thus" in a sentence?

"He didn't study; thus, he failed the test."
Harlon Moss
Oct 02, 2023

Can "therefore" start a sentence?

Yes, e.g., "Therefore, we must reconsider our decision."
Sawaira Riaz
Oct 02, 2023

How do you use "therefore" in a sentence?

"She was late; therefore, she missed the beginning of the movie."
Sawaira Riaz
Oct 02, 2023

How is "therefore" pronounced?

It's pronounced as /ˌðɛərˈfɔːr/.
Harlon Moss
Oct 02, 2023

Does "therefore" indicate a result?

Yes, it introduces a conclusion or consequence derived from a preceding statement.
Aimie Carlson
Oct 02, 2023

Does "thus" indicate a consequence?

Yes, similar to "therefore," but it can also stress the means or manner.
Aimie Carlson
Oct 02, 2023

Is "therefore" synonymous with "hence"?

Yes, both can mean "for that reason," though their usage might slightly differ.
Aimie Carlson
Oct 02, 2023

Can "therefore" be replaced by "so"?

Often, but "so" is more casual. For example, "She was tired, so she went to bed" can replace "She was tired; therefore, she went to bed."
Sawaira Riaz
Oct 02, 2023

Is "thus" an adverb?

Yes, "thus" is primarily used as an adverb.
Harlon Moss
Oct 02, 2023

Can you use "thus" to mean "to this degree"?

Yes, e.g., "The water rose, thus flooding the village."
Aimie Carlson
Oct 02, 2023

How do you use "thus" in a sentence to indicate manner?

"He carefully followed the instructions, thus completing the task successfully."
Sara Rehman
Oct 02, 2023

How is "thus" pronounced?

It's pronounced as /ðʌs/.
Harlon Moss
Oct 02, 2023

Can "thus" and "therefore" be used interchangeably?

Often, but not always. "Thus" emphasizes manner or method, while "therefore" emphasizes causality or reasoning.
Sawaira Riaz
Oct 02, 2023

What does "thus" mean?

It means "in this way," "for this reason," or "to this extent."
Aimie Carlson
Oct 02, 2023

Is "thus" a formal word?

Yes, it's often found in formal contexts, but it can be used in general writing as well.
Harlon Moss
Oct 02, 2023

Is "thus" less common in casual conversation?

Yes, "thus" is more common in written form or formal speech than in everyday casual conversation.
Janet White
Oct 02, 2023
About Author
Written by
Sawaira Riaz
Sawaira is a dedicated content editor at difference.wiki, where she meticulously refines articles to ensure clarity and accuracy. With a keen eye for detail, she upholds the site's commitment to delivering insightful and precise content.
Edited by
Huma Saeed
Huma is a renowned researcher acclaimed for her innovative work in Difference Wiki. Her dedication has led to key breakthroughs, establishing her prominence in academia. Her contributions continually inspire and guide her field.

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