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
seal out
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "seal out" is correct and usable in written English.
It can be used when referring to preventing something, such as air or moisture, from entering a space or area. Example: "To ensure energy efficiency, it's important to seal out drafts from windows and doors."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(9)
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
50 human-written examples
At the bottom of the unit is a rubber bellows to seal out water and dirt.
News & Media
Exterior care of our homes will be simplified, as these covers can be made to seal out the elements.
News & Media
The boy stuffed a towel under his bedroom door, Loraine Dutchin said, to seal out any noise.
News & Media
These gaskets help to seal out cold drafts and prevent heat losses around electrical boxes on cold outside walls.
News & Media
The crepe-like paper is placed around the neck, and over the gown and cutting collar, to seal out unwanted ends.
News & Media
These headphones fit over the ear but have an open-air design, meaning they will not seal out environmental sound; they act more like an on-ear headset.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
10 human-written examples
Here a cool darkness has reigned for centuries, sealing out modernity.
News & Media
Judge Timothy B. Taylor of Superior Court, overruling a previous order by a predecessor in the case to disperse the seals, ruled Friday that given the new law, there was no point in kicking the seals out now.
News & Media
When this cover is in place, it seals out all moisture, so that your drywall stays dry.
News & Media
The sealant secures the structure of the dart while also sealing out any moisture or oil.
Wiki
You want to add a bead of plumbers' putty under it so it seals out water.
Wiki
Expert writing Tips
Best practice
When describing protective measures, use "seal out" to emphasize the act of creating a barrier against unwanted elements like moisture, noise, or light. For example, "Use weatherstripping to "seal out" drafts from windows and doors."
Common error
Avoid using "seal out" when a simpler verb like "prevent" or "block" is more appropriate. "Seal out" implies a more thorough or physical barrier, so using it for abstract concepts or simple avoidance can sound unnatural.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "seal out" is that of a phrasal verb. It combines the verb "seal" with the particle "out" to create a new verb with a distinct meaning. Ludwig provides examples demonstrating its use in preventing entry of elements like water, noise, or light.
Frequent in
News & Media
50%
Wiki
25%
Science
10%
Less common in
Formal & Business
5%
Encyclopedias
5%
Academia
5%
Ludwig's WRAP-UP
In summary, the phrasal verb "seal out" is a commonly used and grammatically sound way to describe the act of creating a barrier against unwanted elements. Ludwig AI confirms its correctness and provides numerous examples of its use across various contexts, particularly in News & Media, Wiki, and Science. While interchangeable with alternatives like "keep out" or "block out", "seal out" often implies a more thorough or physical sealing process. Remember to use it when you need to emphasize a physical barrier and avoid overusing it where simpler verbs suffice.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
keep out
General term for preventing entry or access.
block entry
Focuses on preventing something from entering.
keep away
Implies maintaining a distance or preventing approach.
close off
Highlights completely blocking access or preventing passage.
shut out
Emphasizes exclusion or preventing participation.
exclude
Formal term for preventing inclusion.
protect against
Highlights providing a defense or safeguard.
defend from
Focuses on actively protecting something from attack.
ward off
Suggests actively defending against something.
isolate from
Implies creating a barrier to prevent contact.
FAQs
How can I use "seal out" in a sentence?
You can use "seal out" to describe preventing something from entering a space or area. For example, "The new windows are designed to "seal out" noise from the busy street."
What's the difference between "seal out" and "keep out"?
"Seal out" often implies a more thorough barrier or a physical sealing process, while "keep out" is a more general term for preventing entry.
What can I say instead of "seal out"?
Is it correct to use "seal out" in both physical and abstract contexts?
While typically used in physical contexts (e.g., sealing out moisture), "seal out" can sometimes be used metaphorically in abstract contexts, but this should be done carefully to avoid sounding unnatural. It's usually best to reserve it for situations where a strong barrier is implied.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested