How to use "thus"

What Does "thus" Mean?

• Grammatical function: Thus expresses a consequence or result. It indicates that something is happening or is the case because of something else.
• Typical sentence position: Initial / Medial
• Register: Formal

How to Use It

• Syntactic patterns: Thus is often followed by a comma, especially when it introduces a clause. It can also be followed directly by the verb when it begins a sentence.
• Punctuation rules: A comma usually follows thus when it's used as a conjunctive adverb. A semicolon can precede it when connecting two independent clauses.
• Grammatical flexibility: Yes, thus can start a sentence. It can also be moved within a clause, though less common. Negating thus directly is unusual; the negation typically applies to the cause, not the consequence.
• What sounds unnatural or incorrect: Overusing thus in informal conversation sounds stilted. Using it incorrectly to mean "for example" or "in addition" is also incorrect.

Real-World Examples

These examples are sourced from thus on Ludwig.guru.

"It was ever thus." — The New York Times

"As a result, the country lost a further 21 positions in the policy evaluation compared to last year, thus replacing Canada as the worst-performing industrial country"." — The Guardian

"In the phrase "It was he," "it" and "he" are the same thing: they're both the subject, and thus nominative." — The Economist

"One example is the Advanced Market Commitment tool, where donors pledge to purchase developing country disease-focused vaccines or medicines, giving companies a commercial buyer and thus a reason to risk their R&D investment and product development." — The Guardian

"Thus, Reid is only the fourth poet to win the overall Costa (or Whitbread as it was known under its earlier sponsor) and of those four, three have been honoured for elegies." — The Guardian - Books

Examples sourced from https://ludwig.guru/s/thus

Similar Phrases and Alternatives

Phrase	Context
therefore	More formal and emphatic; suggests a stronger logical deduction.
consequently	Formal; emphasizes the direct consequence of a preceding action or event.
accordingly	Formal; implies acting in a way that is suitable or appropriate given the circumstances.
hence	Formal and slightly archaic; indicates a logical inference.
as a consequence	Formal; highlights the result as a direct outcome.
for this reason	Explains the cause behind a statement, typically in a formal setting.
because of this	A more common alternative that clearly states the cause-and-effect relationship.

Common Mistakes

• Using thus in informal conversation makes the speaker sound overly formal or pretentious.
• Forgetting the comma after thus when it introduces a clause is a common punctuation error.
• Confusing thus with similar connectives like "for example" or "in addition" leads to incorrect usage.
• Learners often overuse "thus" in informal contexts, where a simpler word like "so" or "therefore" would be more appropriate.

Quick-Reference Summary

Expression	Function	Register	Typical Position
thus	Consequence/Result	Formal	Mid-clause, Sentence-initial

FAQs

Where can "thus" appear in a sentence?

Thus can appear at the beginning of a sentence or mid-clause. When it begins a sentence, it introduces the result or consequence of something previously stated. When it appears mid-clause, it connects the cause and effect within the same sentence, usually set off by a comma.

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How does "thus" differ from "therefore"?

Both thus and therefore indicate a consequence, but therefore is generally considered a stronger and more emphatic connective. Thus is often used to describe a natural or expected outcome, while therefore implies a more deliberate or logical deduction.

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Is it incorrect to use "thus" in everyday conversation?

While grammatically correct, using thus in informal conversation can sound overly formal or pretentious. In most casual settings, simpler alternatives like "so" or "therefore" are more appropriate and sound more natural.