a number of which

USAGE SUMMARY

The phrase "a number of which" is grammatically correct and is commonly used in written English.
It is often used to introduce additional information or clarification about a previous statement. Example: "The store had a large selection of fruits and vegetables, a number of which were locally grown." In this sentence, "a number of which" is used to specify that some of the produce in the store is locally grown, providing more detailed information about the initial statement.

✓ Grammatically correct

News & Media

Encyclopedias

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

55 human-written examples

You get money for completing missions, a number of which are, yes, monstrously violent.

The Guardian

The air force has about 220 aircraft and helicopters, a number of which are unserviceable.

The New York Times

There are many first editions, a number of which Conrad gave to his peers.

The Guardian - Books

People had an array of answers, a number of which we addressed earlier this week.

The New York Times - Science

The Fur lived in homesteads, a number of which constituted a village.

Encyclopedia Britannica

Several empirical selection methods have been reported, a number of which are summarised in this review.

Advanced Drug Delivery Reviews

The allegory, regrettably, is more sure-footed than the performances, a number of which seem palpably nervous.

The Guardian - Film

And then there are the bars, a number of which have come highly recommended on Twitter and below the line.

The Guardian - Travel

It is beginning to cause some concern in Christian families, a number of which have left the country.

The New York Times

In my Durham diocese alone, there are 44 food distribution centres – a number of which also run debt centres.

The Guardian - Opinion

The group's website boasts of meeting a former chancellor before budgets to make proposals, "a number of which became policy".

The Guardian - Opinion

Expert writing Tips

Best practice

Ensure that the noun which "a number of which" refers to is clearly defined and easily identifiable in the preceding sentence.

Common error

Avoid using "a number of which" if the connection to the original noun is unclear or ambiguous. Reword the sentence to ensure a clear relationship between the phrase and what it refers to.

Linguistic Context

The phrase "a number of which" functions as a relative clause, specifically introducing additional information about a subset of a previously mentioned group. It specifies that a certain quantity of the items already discussed possess a particular characteristic or are relevant to the current point, as demonstrated by Ludwig.

Expression frequency: Very common

Frequent in

News & Media

39%

Academia

20%

Encyclopedias

17%

Less common in

Science

13%

Wiki

8%

Formal & Business

3%

Ludwig's WRAP-UP

In summary, the phrase "a number of which" is a versatile relative clause used to introduce additional information about a subset within a previously mentioned group. Ludwig AI analysis indicates its grammatical correctness and common usage across various contexts, particularly in News & Media, Academic, and Encyclopedia sources. While maintaining a neutral to formal tone, it serves to clarify and specify details about certain elements, ensuring clarity and flow in writing. When using this phrase, ensure the link to the original noun is clear, and remember that alternatives like "several of which" or "some of which" may be suitable depending on the specific context.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

several of which

Emphasizes a smaller, more distinct subset.

some of which

Implies an indefinite quantity that is less specific.

many of which

Indicates a large quantity within the group.

various of which

Highlights the diversity within the specified subset.

a few of which

Highlights a small amount within the group.

certain of which

Highlights some elements from the group, specifying particular ones without stating the precise number.

a portion of which

Emphasizes the fraction of the group and highlights an approximate quantity.

numerous of which

Implies that there are a great number of entities from the initial group.

a selection of which

Focuses on the act of choosing some elements from the group rather than the numerical quantity.

an assortment of which

Emphasizes the varied nature of the subset.

FAQs

How can I use "a number of which" in a sentence?

Use "a number of which" to specify that some items from a previously mentioned group are being discussed. For example, "The company released several new products, "a number of which" have already become bestsellers."

What's a good alternative to "a number of which"?

Alternatives include "several of which", "some of which", or "many of which". The best choice depends on the specific context and the quantity you want to emphasize.

Is it more formal to say "a number of which" or "some of which"?

"A number of which" tends to be slightly more formal than "some of which", but both are generally acceptable in most writing contexts. "Some of which" is often preferred in more informal settings.

How does "a number of which" differ from "of which"?

"Of which" is a broader term used in relative clauses, while "a number of which" specifically indicates a subset of items from the group previously mentioned. Using "a number of which" emphasizes the quantity or plurality of the subset.