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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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namely which

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "namely which" is not correct and is not typically used in written English.
It is generally used to introduce a specific example or clarification, but the combination is awkward and redundant. Example: "There are several factors to consider, namely which ones will have the most impact on our decision."

⚠ May contain grammatical issues

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

37 human-written examples

This theorem concerns a question that goes back to the time of Pierre de Fermat (1601-1665), namely, which quadratic forms represent all integers?

News & Media

The Guardian

This prompts a question so fundamental that it keeps recurring all the way through Walking in My Mind: namely, which art form best conveys the mind's mysterious workings?

Namely, which bounded linear operators on the Hardy space preserve the set of all shifted outer functions?

Ladies and gentlemen, surely one of the most vexed questions of this or any other age – namely which book should be crowned, in this, the 70th anniversary year of the publishing list's birth, the Puffin of Puffins?

We read what publishers submit to us; we're permitted to call in a maximum of 12 additional titles, a process that presumes we already know what we can't know, namely which books we will like that we haven't heard of.

Again, as signs of the recovery emerge, the horrendous post-crisis spending black hole is being bickered round in the political debate in the narrowest terms, namely which party will cut public services most.

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Human-verified similar examples from authoritative sources

Similar Expressions

23 human-written examples

There was a 9-bp deletion in exon 19, namely, c.2239_2247del9, which resulted in a deletion of three amino acids, namely p.L747_E749del.

Science

BMC Cancer

We examined one such method, namely PRVCS52, which unfortunately had poor performance (Supplementary Figure 11).

Science & Research

Nature

The probability of correctly receiving either character is the same, namely, p, which accounts for the designation symmetric.

Encyclopedias

Britannica

In this paper "meaningfulness" has a particular meaning, namely accuracy, which is closeness to truth.

Capability evaluation was performed using statistical methods, namely indices which define the measuring device capability.

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Expert writing Tips

Best practice

Avoid using the phrase "namely which" in formal writing. Opt for alternatives like "specifically which" or "that is which" to ensure grammatical correctness and clarity.

Common error

The phrase "namely which" is often redundant. "Namely" already introduces a specific item or clarification, so adding "which" can make the sentence sound awkward and repetitive. Reword to use either "namely" or "which" for better clarity.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

2.1/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "namely which" functions as an introduction to a specific element or clarification. However, it's considered grammatically incorrect and redundant, as "namely" already serves this purpose. Ludwig AI highlights this issue.

Expression frequency: Rare

Frequent in

Science

37%

News & Media

37%

Academia

26%

Less common in

Encyclopedias

0%

Formal & Business

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, "namely which" is generally considered grammatically incorrect due to its redundancy. "Namely" already serves to introduce a specific item, making the addition of "which" unnecessary and awkward. As Ludwig AI points out, better alternatives include "specifically which" or "that is which", which offer greater clarity and grammatical correctness. Although the phrase appears across various sources, including science, news, and academia, it's best avoided in formal writing. Opting for clearer alternatives ensures effective communication.

FAQs

How can I rephrase a sentence that uses "namely which"?

Replace "namely which" with phrases like "specifically which" or "that is which" for improved clarity and grammatical correctness. For example, instead of "The problem, namely which solution to implement, was debated", try "The problem, specifically which solution to implement, was debated."

What does "namely" mean, and how does it differ from "which"?

"Namely" introduces a specific example or clarification. "Which" is used to ask a question or to specify one or more things from a set. Using them together, as in "namely which", is often redundant. Refer to examples using "specifically which".

Is "namely which" grammatically correct in English?

No, "namely which" is generally considered grammatically incorrect. It's better to use either "namely" followed by a clear explanation or to rephrase the sentence using alternatives like "that is which".

When is it appropriate to use "namely" in a sentence?

"Namely" is appropriate when you want to introduce a specific example or clarification. For instance, "There are several factors to consider, namely cost, time, and resources." Using alternatives like "specifically which" could make your point more effective.

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Source & Trust

84%

Authority and reliability

2.1/5

Expert rating

Real-world application tested

Most frequent sentences: