Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a number of device
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a number of device" is not correct in English.
Did you mean "a number of devices"? You can use the corrected phrase when referring to multiple devices in a context where you are discussing technology or equipment. Example: "A number of devices were connected to the network, causing it to slow down."
⚠ May contain grammatical issues
Alternative expressions(3)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
15 human-written examples
The displays are currently in mass production and a number of device manufacturers are expected to announce products incorporating Pixel Qi's display shortly.
News & Media
The company also announced a number of device management enhancements including an update to Windows Analytics.
News & Media
As an example, a number of device applications have been demonstrated, i.e., lasers, detectors, sensors, photovoltaic cells, light-emitting diodes, and solid-state quantum computation [6 14].
Science
Other partners include the likes of Citrix, Cisco, F5 and SAP, as well as a number of device manufacturers and carriers.
News & Media
To date, Amazon has announced deals with a number of device makers, including Samsung, Brita, Oster, Obe, Petnet, Clever Pet, Sutro, Thync, and Sealed Air.
News & Media
"We expect to see a number of device launches at the show and this will include those with 5 inch screens, LTE, quad cores and 13 megapixel cameras," he said.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
45 human-written examples
You can reach Google already through a number of devices.
News & Media
Other researchers integrated carbon nanotubes into a number of devices.
News & Media
A number of devices have been designed to accomplish this.
Encyclopedias
A number of devices were seized from his home address and the images were deleted".
News & Media
A number of devices are now bundled with live traffic feeds.
News & Media
Expert writing Tips
Best practice
Always use the plural form "devices" after "a number of". The correct phrase is "a number of devices".
Common error
Ensure you use the plural noun "devices" instead of the singular "device" after the phrase "a number of". Using the singular form is a common grammatical error.
Source & Trust
60%
Authority and reliability
1.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a number of device" is grammatically incorrect. The correct phrasing is "a number of devices". As shown by Ludwig, the expression necessitates a plural noun to denote multiplicity. The phrase is intended to function as a determiner specifying quantity.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, the phrase "a number of device" is grammatically incorrect. The correct form is "a number of devices", which indicates a quantity of more than one device. As noted by Ludwig AI, it requires a plural noun. Alternative expressions include "several devices" or "multiple devices". Remember to always use the plural form for grammatical accuracy.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Several devices
Replaces "a number of" with "several", maintaining the meaning of multiple items but with correct grammar.
Multiple devices
Uses "multiple" instead of "a number of", providing a grammatically sound alternative.
Various devices
Employs "various" to indicate a collection of different devices.
A range of devices
Substitutes "a number of" with "a range of", suggesting a variety of devices.
Many devices
Replaces "a number of" with "many", offering a simpler, grammatically correct alternative.
Numerous devices
Uses "numerous" in place of "a number of", conveying the idea of a large quantity of devices.
A multitude of devices
Replaces "a number of" with "a multitude of", indicating a large number of devices.
A collection of devices
Rephrases to focus on the group of devices.
A quantity of devices
Uses "quantity" to express the number of devices, suitable for more formal contexts.
An array of devices
Uses "array" to describe an organised set of devices.
FAQs
What is the correct way to say "a number of device"?
The correct phrase is "a number of devices". The noun following "a number of" should always be plural.
What can I use instead of "a number of device"?
Since "a number of device" is grammatically incorrect, use alternatives like "several devices", "multiple devices", or "various devices".
Is "a number of device" grammatically correct?
No, "a number of device" is grammatically incorrect. The correct form is "a number of devices".
How do I use "a number of devices" in a sentence?
Example: "A number of devices are compatible with this software."
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
60%
Authority and reliability
1.2/5
Expert rating
Real-world application tested