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
erase when not needed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "erase when not needed" is correct and usable in written English.
It can be used in contexts where you want to instruct someone to remove or delete something that is no longer necessary. Example: "Please make sure to erase when not needed to keep the document clean and organized."
✓ Grammatically correct
Wiki
News & Media
Alternative expressions(20)
only when it is not needed
as not needed
it was not needed
not needed
its not needed
not needed for
was not needed
will not be needed
when needed
did not needed
when it is needed
it might not be needed
when it needed
it is not needed
that is not needed
may or may not be needed
might not be needed
does not needed
if not needed
when needed for
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
Turn off cell when not needed.
Wiki
Erase the not needed guidelines.
Wiki
Erase not needed details and outline the image.
Wiki
Erase lines which are not needed anymore.
Wiki
Erase everything which is not needed anymore and shape the drawing.
Wiki
Erase the lines which are not needed anymore.
Wiki
Time for details: facial features, decoration.. Erase the lines which are not needed anymore.
Wiki
Erase few small lines which are not needed anymore.
Wiki
Outline the drawing, erase all the details which are not needed.
Wiki
Erase the lines that you do not need anymore.
Wiki
Making them dark will ensure that they stay in the paper when you erase anything you don't need.
Wiki
Expert writing Tips
Best practice
When providing instructions, use "erase when not needed" to ensure clarity and prevent unnecessary information from cluttering documents or systems. For instance, "Erase temporary files when not needed to free up disk space."
Common error
Avoid prematurely erasing elements that might be needed later. Always double-check if the information is truly unnecessary before removing it. For example, don't "erase when not needed" if it impacts historical records.
Source & Trust
75%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "erase when not needed" functions primarily as an instructional clause. It advises the removal of elements once they cease to be necessary. Ludwig confirms the validity of this usage, showcasing its practical application.
Frequent in
Wiki
50%
News & Media
50%
Formal & Business
0%
Less common in
Science
0%
Reference
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "erase when not needed" is a grammatically correct and understandable clause, primarily used for providing instructions on removing unnecessary information. Ludwig indicates the validity of the phrase's construction. It is most commonly found in wiki entries and news articles, indicating an informal register. To ensure clarity, it’s best practice to use this phrase when giving precise directions. Alternatives such as "delete when unnecessary" or "remove if not required" offer simpler ways to convey the same message.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
delete when unnecessary
Replaces "erase" with "delete" and rephrases "not needed" with "unnecessary" for a more concise expression.
remove if not required
Substitutes "erase" with "remove" and "not needed" with "not required", offering a slightly more formal tone.
eliminate when no longer necessary
Uses "eliminate" instead of "erase" and adds "no longer" for emphasis, making it more explicit.
discard if not essential
Replaces "erase" with "discard" and "not needed" with "not essential", implying a more definitive removal.
clear when expendable
Uses "clear" instead of "erase" and replaces "not needed" with "expendable", indicating something is no longer valuable.
omit when superfluous
Substitutes "erase" with "omit" and "not needed" with "superfluous", providing a more formal and precise alternative.
get rid of when unneeded
Replaces "erase" with the idiomatic "get rid of" and "not needed" with "unneeded", making it more informal.
take away if unnecessary
Uses "take away" instead of "erase" and "unnecessary" for "not needed", conveying a more active removal.
expunge when obsolete
Substitutes "erase" with "expunge" and "not needed" with "obsolete", indicating a complete and formal removal of something outdated.
purge when redundant
Replaces "erase" with "purge" and "not needed" with "redundant", implying a thorough cleansing of unnecessary elements.
FAQs
How can I use "erase when not needed" in a sentence?
You can use "erase when not needed" to instruct someone to remove unnecessary information, such as, "Erase temporary files when not needed to free up disk space."
What is a simpler way to say "erase when not needed"?
You could say "delete when unnecessary" or "remove if not required" for a more concise alternative.
When is it appropriate to use the phrase "erase when not needed"?
It's suitable when giving instructions or guidelines where removing redundant or obsolete information is necessary to maintain clarity or efficiency. For example, erasing temporary files, unused data, or irrelevant details.
What's the difference between "erase when not needed" and "delete if unnecessary"?
While similar, "erase when not needed" may imply a more immediate action, whereas "delete if unnecessary" can suggest a more thoughtful consideration before removal. Both essentially mean to remove something that is no longer required.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
75%
Authority and reliability
4.1/5
Expert rating
Real-world application tested