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
stack of keys
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "stack of keys" is correct and usable in written English.
It can be used to refer to a collection or group of keys that are typically held together, often on a keyring or similar device. Example: "I reached into my bag and pulled out a stack of keys, searching for the one that would unlock the front door."
✓ Grammatically correct
Wiki
Science
News & Media
Alternative expressions(6)
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
1 human-written examples
Cut a notch down one side of the pipe the width of the stack of keys.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Our data provide unprecedented insight into the mechanism by which SeCobA converts the Co II)rrinoid substrate to 4c species, with the hydrophobicity, size, and ability to participate in offset π-stacking interactions of key active-site residues all being critical for activity.
Science
However, for some bioenergy conversion technologies, such as combustion, it may be necessary to have foreground modelling of the conversion step, as direct emissions from chimney stacks may be of key regional concern [85 87].
COLLECTING I have a stack of those plastic card hotel room keys that I picked up on this latest book tour.
News & Media
I looked down, and in front of her computer, poking out from under a stack of business cards, was one last key.
News & Media
A practical outcome of the CREDO program is a technology stack, a key element of which is an agent specification language (PROforma: Sutton and Fox (2003) [55]) which has proved to be a versatile tool for designing point of care applications in many clinical specialties and settings.
It comprises of stacking temporally spaced intervals of key video frames, and color-filled glyphs are used for representing semantic information to summarize the motion flow.
We go back into his house, where Key hands me a stack of poems, some laminated, some written on the back of porn playing cards.
News & Media
The stack performance and local distributions of key parameters are investigated with regards to the thermal, water and gas management.
Science
If you hold the ⇧ Shift key while clicking an item, an infinite stack of that item will be added to your inventory.
Wiki
The key: he didn't sit down with a stack of paper and derive more equations.
News & Media
Expert writing Tips
Best practice
When describing keys, consider the context. "Bunch of keys" might be more appropriate for everyday use, while "set of keys" implies a specific, related group.
Common error
Avoid using "stack of keys" when a simpler term like "keys" or "bunch of keys" is more suitable for the situation. Overusing the term can sound unnatural or overly formal.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "stack of keys" primarily functions as a noun phrase. It refers to a collection or group of keys that are positioned or arranged in a pile. Ludwig indicates that this is a correct and usable phrase.
Frequent in
News & Media
36%
Wiki
23%
Science
18%
Less common in
Formal & Business
7%
Academia
6%
Encyclopedias
5%
Ludwig's WRAP-UP
The phrase "stack of keys" is a grammatically sound noun phrase used to describe a group of keys arranged in a pile or collection. While Ludwig confirms its correctness, it is relatively rare in usage compared to simpler alternatives like "bunch of keys" or "set of keys". The phrase appears in diverse contexts, from news and media to scientific literature. The choice of using "stack of keys" depends on the desired level of formality and the specific nuance you want to convey. When clarity is important, considering the context and selecting the most appropriate phrase enhances communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
bunch of keys
Emphasizes the collection of keys held together.
set of keys
Highlights the completeness or intended grouping of keys.
pile of keys
Implies a less organized and more random arrangement of keys.
collection of keys
Formally denotes a group of keys gathered together.
key collection
Highlights the act of possessing multiple keys.
group of keys
A general term for multiple keys considered together.
cluster of keys
Suggests the keys are closely grouped together.
assembly of keys
Indicates a formal arrangement or gathering of keys.
accumulation of keys
Suggests a gradual gathering of keys over time.
hoard of keys
Implies a hidden or secret collection of keys.
FAQs
What is another way to say "stack of keys"?
You can use alternatives like "bunch of keys", "set of keys", or "pile of keys" depending on the specific context.
How can I use "stack of keys" in a sentence?
Example: "I rummaged through my bag and pulled out a "stack of keys", trying to find the right one for the door."
Is it more common to say "stack of keys" or "bunch of keys"?
"Bunch of keys" is generally more common and informal than "stack of keys", which might imply a more deliberate or organized arrangement.
What's the difference between a "stack of keys" and a "set of keys"?
A "stack of keys" suggests a haphazard arrangement, while a "set of keys" implies a specific, related grouping meant for a particular purpose.
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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested