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
tightly sealed
Grammar usage guide and real-world examplesUSAGE SUMMARY
"tightly sealed" is a correct and usable phrase in written English.
It means something is closed or fastened tightly, without any gaps or openings. Example: The jar of pickles was tightly sealed, ensuring its freshness and preventing any leaks.
✓ Grammatically correct
News & Media
Science
Wiki
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
60 human-written examples
Does that mean tightly sealed?
News & Media
Store in tightly sealed plastic or glass container.
News & Media
Keep in a tightly sealed container at room temperature.
News & Media
Don't leave food lying around; use tightly sealed garbage cans.
News & Media
But on the right the echo chamber is louder and more tightly sealed.
News & Media
Grits will last several months in the freezer in a tightly sealed bag.
News & Media
The key is multiple layers or a thick layer of tightly sealed air.
News & Media
Greenhouse cover is tightly sealed against infiltration.
The methanogenic reactors were tightly sealed to maintain anaerobic conditions.
The autoclave was tightly sealed and was put in an electric oven preheated to 120°C.
Science
Reaction were carried out in a tightly sealed screw-capped vial.
Science
Expert writing Tips
Best practice
When describing containers or storage, use "tightly sealed" to emphasize the prevention of air or moisture exposure, maintaining freshness or preventing contamination. For example, "Store the spices in a tightly sealed container to preserve their flavor."
Common error
Avoid using "tightly sealed" redundantly. If the context already implies a secure closure, using the phrase may be unnecessary. For instance, instead of "the lid was tightly sealed shut", simply state "the lid was sealed" if the sealing aspect is already understood.
Source & Trust
78%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "tightly sealed" functions primarily as an adjectival modifier, describing a noun (often a container, package, or space) that has been closed or secured with a high degree of effectiveness. Ludwig examples illustrate usage in contexts like storing food, conducting scientific experiments, and maintaining environmental conditions.
Frequent in
Science
31%
News & Media
29%
Wiki
27%
Less common in
Formal & Business
10%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "tightly sealed" is a common and grammatically correct adjectival modifier used to describe something closed or secured with a high degree of effectiveness. Ludwig's examples demonstrate its versatility across various contexts, including food storage, scientific procedures, and general safety measures. While synonyms such as "securely sealed" and "airtight" exist, "tightly sealed" offers a balanced and widely applicable description. Remember to avoid redundancy and ensure your descriptions are contextually appropriate. According to Ludwig, the phrase is often used in news, science, and wiki resources.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
securely sealed
Focuses on the security aspect of the sealing, emphasizing protection from unwanted access or leakage.
hermetically sealed
Implies an airtight and impermeable seal, often used in scientific or technical contexts.
firmly sealed
Highlights the strength and stability of the seal.
closely sealed
Emphasizes the proximity of the closure, leaving virtually no gap.
effectively sealed
Focuses on the functionality of the seal, ensuring it performs its intended purpose.
imperviously sealed
Suggests the seal cannot be penetrated or affected by external elements.
airtight
Specifically indicates that no air can pass through the seal.
watertight
Specifically indicates that no water can pass through the seal.
securely fastened
Shifts the emphasis to the method of securing rather than the seal itself, suggesting a strong closure.
well-secured
Highlights the overall quality and reliability of the securing method.
FAQs
How is "tightly sealed" used in recipes?
In recipes, "tightly sealed" usually refers to storing ingredients or finished dishes to maintain freshness. For example, "Chill for at least 2 hours or up to 3 days in a "tightly sealed" container."
What are some synonyms for "tightly sealed"?
Alternatives include "securely sealed", "hermetically sealed", or "airtight" depending on the specific context.
Is it redundant to say "tightly sealed shut"?
Yes, "tightly sealed shut" can be redundant. The phrase "tightly sealed" already implies that something is closed securely, so adding "shut" may not be necessary.
When should I use "tightly sealed" instead of "sealed"?
Use "tightly sealed" when you want to emphasize the degree of closure and security. "Sealed" generally indicates closure, while "tightly sealed" implies a more robust and secure closure.
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
78%
Authority and reliability
4.5/5
Expert rating
Real-world application tested