Since vs. Therefore: What's the Difference?
Edited by Janet White || By Harlon Moss || Published on November 13, 2023
"Since" can indicate time or reason, while "therefore" is used to show a conclusion or result.
Key Differences
"Since" can function as a conjunction, preposition, or adverb, and refers to a time period starting in the past and continuing to the present, or it can indicate cause or reason. "Therefore," on the other hand, is an adverb that introduces a conclusion or result based on what has been stated before.
"Since" is frequently used in sentences such as "Since it's raining, we will stay indoors," where it shows a cause or reason. "Therefore" is often found in sentences like "He didn't study; therefore, he failed the exam," where it indicates a logical conclusion.
"Since" can initiate a dependent clause, while "therefore" generally appears in the main clause. It's important to note that "therefore" should be used carefully to ensure clarity in connecting cause and effect.
"Since" is versatile and fits comfortably in both formal and informal contexts. "Therefore" is generally more formal and may appear stiff or overly formal in casual conversation.
Comparison Chart
Function
Conjunction, preposition, adverb
Adverb
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Meaning
Time period or cause
Conclusion or result
Example
Since it's raining...
Therefore, he failed...
Usage
Formal and informal
Generally more formal
Tone
Versatile
Formal
Since and Therefore Definitions
Since
Because; given that.
Since you're not ready, we'll wait.
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Therefore
As a result; consequently.
He was late; therefore, he missed the bus.
Since
Time period from the past until now.
I haven't seen him since yesterday.
Therefore
Because of that.
The road was wet; therefore, it was slippery.
Since
In light of the fact that.
Since it's raining, bring an umbrella.
Therefore
For that reason.
She studied hard; therefore, she passed.
Since
From a past time until now.
It's been years since we last met.
Therefore
Used to introduce a logical conclusion.
He's allergic to cats; therefore, he avoids them.
Since
During a period from a specific past time until now.
She has changed since then.
Therefore
By consequence.
There was traffic; therefore, he took a detour.
Since
From then until now or between then and now
They left town and haven't been here since.
Therefore
For that reason or cause; consequently or hence.
Since
Before now; ago
A name long since forgotten.
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.
Since
After some point in the past; at a subsequent time
My friend has since married and moved to California.
FAQs
What does "since" mean?
"Since" can indicate a time period from the past until now, or it can mean because or given that.
What is an example of "since" used in a sentence?
"I haven't seen him since yesterday."
What is an example of "therefore" used in a sentence?
"He was late; therefore, he missed the bus."
Is "therefore" formal or informal?
"Therefore" is generally more formal.
What are some synonyms for "therefore"?
Some synonyms for "therefore" are "consequently," "hence," and "as a result."
Can "since" be used in spoken English?
Yes, "since" can be used in spoken English.
What is the grammatical category of "since"?
"Since" can be a conjunction, preposition, or adverb.
What is the grammatical category of "therefore"?
"Therefore" is an adverb.
What are some related words to "therefore"?
Some related words to "therefore" are "hence," "thus," and "consequently."
How is "since" commonly used?
"Since" is commonly used to refer to a specific point in time in the past from the present.
How is "therefore" commonly used?
"Therefore" is commonly used to introduce a logical conclusion or result.
What does "therefore" mean?
"Therefore" is used to introduce a conclusion or result.
Can "since" be used as a preposition?
Yes, "since" can function as a preposition.
Is "since" formal or informal?
"Since" can be used in both formal and informal contexts.
Can "therefore" be used in spoken English?
Yes, "therefore" can be used in spoken English, but it may sound formal.
Can "since" be used in poetry?
Yes, "since" can be used in poetry.
Can "therefore" be used in poetry?
Yes, "therefore" can be used in poetry.
Can "therefore" be used as a conjunction?
No, "therefore" is an adverb and cannot function as a conjunction.
What are some synonyms for "since"?
Some synonyms for "since" are "because," "as," and "from."
What are some related words to "since"?
Some related words to "since" are "because," "after," and "from."
About Author
Written by
Harlon MossHarlon is a seasoned quality moderator and accomplished content writer for Difference Wiki. An alumnus of the prestigious University of California, he earned his degree in Computer Science. Leveraging his academic background, Harlon brings a meticulous and informed perspective to his work, ensuring content accuracy and excellence.
Edited by
Janet WhiteJanet White has been an esteemed writer and blogger for Difference Wiki. Holding a Master's degree in Science and Medical Journalism from the prestigious Boston University, she has consistently demonstrated her expertise and passion for her field. When she's not immersed in her work, Janet relishes her time exercising, delving into a good book, and cherishing moments with friends and family.
