how so

USAGE SUMMARY

"how so" is correct and usable in written English.
You can use it when you are asking for clarification or more information about something someone has said. Example: "He said they're moving away next week." "How so?".

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

57 human-written examples

How so, Mr. Taranto?

The New Yorker

How so, Esther?

Independent

Q How so?

The New York Times

"How so?" I asked.

The New Yorker

"How so?" the Emperor asked.

The New Yorker

"How so?" you'd reply?

The Guardian - Sport

How so, otherwordly one?

The Guardian

REMNICK: How so?

The New Yorker

Human-verified similar examples from authoritative sources

Similar Expressions

3 human-written examples

So how do so many millions survive?

The New York Times - Books

How did so much go so wrong?

The New York Times

So how autobiographical is So There?

Independent

Expert writing Tips

Best practice

Use "how so" to politely challenge or question a statement that seems unclear or requires further explanation. It is particularly effective in journalistic interviews or formal dialogues.

Common error

Avoid using "how so" excessively in casual conversations. It can sound overly formal or even interrogative if used too frequently with friends or family.

Linguistic Context

The primary grammatical function of "how so" is as an adverbial interjection. It serves to prompt further explanation or justification from the speaker. Ludwig examples show it's typically used in direct response to a statement.

Expression frequency: Common

Frequent in

News & Media

75%

Science

15%

Formal & Business

10%

Less common in

Academia

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, "how so" is a grammatically correct phrase used to politely request clarification or justification for a statement. Ludwig's AI confirms its proper usage in written English. It's most frequently found in news and media contexts, carrying a neutral to formal tone. While effective in professional settings, it should be used judiciously in casual conversations to avoid sounding overly interrogative. Alternatives like "why is that" can be used for a less formal approach.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

why is that

More direct and emphasizes the reason behind a statement.

how is that the case

Slightly more formal and explores the specific circumstances.

what makes you say that

Focuses on the speaker's reasoning or basis for their assertion.

what's the reasoning behind that

Emphasizes a deeper explanation of the premise.

can you elaborate

A general request for more details without a specific challenge.

in what way

Focuses specifically on the method or manner.

could you explain that further

A polite request for a more detailed explanation.

what do you mean by that

Seeks clarification of the speaker's intent or definition.

what's the explanation

More directly seeks the reason or justification.

wherefore

A more archaic and formal equivalent, less common in modern speech.

FAQs

How can I use "how so" in a sentence?

"How so" is typically used as a direct response to a statement, prompting the speaker to elaborate or provide justification. For example: "The project failed." "How so?"

What's a less formal alternative to "how so"?

In less formal contexts, you can use phrases like "why is that?" or "what do you mean?" as alternatives. They convey a similar request for clarification without sounding overly formal.

Is "how so" appropriate for academic writing?

While "how so" is grammatically correct, it's generally too informal for academic writing. Consider using phrases like "in what way?" or "can you elaborate on that?" for a more suitable tone.

What is the difference between "how so" and "why is that"?

"How so" directly asks for an explanation, while "why is that" probes more specifically for the reason behind the statement. The former is slightly more neutral, while the latter implies a degree of curiosity or skepticism.