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
filling up with
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "filling up with" is grammatically correct and can be used in written English.
It is typically used to describe the action of something becoming full or reaching its maximum capacity. Example: The parking lot was quickly filling up with cars as more people arrived for the concert.
✓ Grammatically correct
News & Media
Wiki
Academia
Alternative expressions(5)
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
Three rooms were filling up with water.
News & Media
I'm just filling up with laughter.
News & Media
pipeline is still filling up with companies of all types.
News & Media
The severed ends were sitting there filling up with weeds.
News & Media
Mailboxes are filling up with anti-Gingrich leaflets.
News & Media
But imagine this place filling up with people".
News & Media
Jordan-Hare is quickly filling up with orange and blue.
News & Media
I can see the space filling up with people.
News & Media
But allergy clinics are still filling up with the miserable.
News & Media
Jean Maria Arrigo's inbox is filling up with apologies.
News & Media
The waterfront neighborhood was filling up with high-rise buildings.
News & Media
Expert writing Tips
Best practice
Use "filling up with" to describe a process where something is actively becoming full or reaching its maximum capacity. It works well for both physical and abstract contexts, such as a room filling up with people or one's mind filling up with ideas.
Common error
Avoid using "filling up with" to describe a static state of fullness. The phrase implies an ongoing process, not a completed one. For a completed state, consider using "full of" or "filled with" instead.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "filling up with" functions as a dynamic prepositional phrase, indicating an ongoing process of something becoming full. Ludwig examples illustrate this with phrases like "Three rooms were filling up with water" and "Mailboxes are filling up with anti-Gingrich leaflets."
Frequent in
News & Media
85%
Wiki
7%
Academia
3%
Less common in
Formal & Business
2%
Science
2%
Encyclopedias
1%
Ludwig's WRAP-UP
In summary, "filling up with" is a versatile and grammatically correct prepositional phrase used to describe the ongoing process of something becoming full. As Ludwig AI confirms, this phrase is acceptable and widely used in written English. It's commonly found in news and media, as well as in more informal contexts like wiki articles. The key is to use it when emphasizing the dynamic process, rather than a static state of fullness. Common alternatives include "brimming with" or "becoming replete with", each carrying slightly different nuances. Remember to avoid using it for completed actions; instead, opt for phrases like "filled with".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
brimming with
Implies a fullness that is almost overflowing.
becoming replete with
This alternative uses more formal language, suggesting a state of complete fullness.
becoming crowded with
Highlights the idea of a space becoming densely occupied.
being saturated with
Focuses on the idea of something being completely soaked or permeated.
swelling with
Emphasizes an increase in size or volume due to accumulation.
accumulating in
Suggests a gradual increase or gathering of something within a space.
being inundated with
Suggests an overwhelming influx or flood of something.
congested with
Describes a state of being blocked or overcrowded.
getting loaded with
Focuses on the process of loading or charging something to its full capacity.
stocking up on
Implies gathering a supply of something.
FAQs
How can I use "filling up with" in a sentence?
"Filling up with" describes the process of something becoming full. For example, "The stadium was filling up with fans before the game" or "Her heart was filling up with joy at the good news".
What's a good alternative to "filling up with"?
Depending on the context, you could use alternatives like "brimming with", "becoming replete with", or "getting loaded with".
Is it correct to say "filled up with" instead of "filling up with"?
While both are grammatically correct, "filled up with" implies a completed action or state, whereas "filling up with" suggests an ongoing process. Choose the phrase that best reflects the intended meaning. For example, "The glass is filled up with water" versus "The glass is filling up with water".
What's the difference between "filling up with" and "full of"?
"Filling up with" describes the dynamic action of becoming full, while "full of" describes a state of being completely occupied. For instance, "The room is filling up with smoke" (an ongoing process) versus "The room is full of smoke" (a completed state).
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested