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
which completely fills
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "which completely fills" is correct and usable in written English.
It can be used to describe something that occupies all available space or capacity. Example: "The container is designed to hold a liquid which completely fills it to the brim."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(1)
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
The following south-eastward basin widening allowed progradation of alluvial fan systems, which completely filled the lacustrine area (tentatively late middle Pleistocene).
Science
The graft was pressed against the recipient cornea with an air bubble, which completely filled the anterior chamber for 5 10 min.
Each frame of the animation was drawn in a 600 × 800 pixel area, which completely filled the monitor screen (100 pixels equaled 4.87 cm).
Surface appearance showed a flat whitish tissue with a regular and smooth surface which completely filled the ES, while it only partially filled the ED, despite the fact that both treated and control groups showed the same least square mean in both categories.
Science
However, in rock matrixes which are completely filled with kerogen, in which adsorbed gas and free gas are present together (e.g. Guo et al. 2015).
This prefabricated structure is made of a steel frame which is completely filled with soil and a face made of tree trunks among which scions or autochthonous bushes are planted.
Unlike most wine barrels, which are completely filled to prevent oxidation, a little headroom is left in sherry barrels, which offers a surface for a film of yeast to grow.
News & Media
The gorgeous, new Whitney Museum had only just dug its foundation, which was completely filled with water from the storm surge.
News & Media
In a clinical trial, a complex composed of fibrin and collagen for controlled release of TGF-β was transplanted into patient with focal cartilage defects in the knee, which were completely filled in a 2 years follow-up study (Gille et al., 2010).
Science
At the end of the assessment, all questionnaires which were completely filled out were placed in an envelope and sealed in front of the class.
Science
The proximal BAH domain of Polybromo has a six-stranded β-barrel core, the centre of which is completely filled with hydrophobic residues [ 49].
Expert writing Tips
Best practice
When using "which completely fills", ensure the antecedent of 'which' is clear to avoid ambiguity. For instance, specify the object or space that is being filled.
Common error
Avoid using "which completely fills" when a simpler, more direct verb like 'covers' or 'occupies' would suffice. Overusing complex phrasing can reduce clarity.
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which completely fills" functions as a relative clause, providing additional information about a noun. As Ludwig AI shows, it often modifies a noun, describing how something occupies a space or container entirely.
Frequent in
Science
70%
News & Media
15%
Encyclopedias
15%
Less common in
Wiki
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
In summary, "which completely fills" is a relative clause used to describe something that occupies a space or container entirely. Ludwig AI indicates this phrase is grammatically correct and appropriate, although not overly common. It's most often found in scientific, news, and encyclopedia contexts, where precise descriptions are necessary. When writing, ensure the antecedent of 'which' is clear, and consider whether a simpler verb would be more effective. Remember, the aim is always to convey the meaning with clarity and precision.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that entirely occupies
Replaces "which completely fills" with a more concise expression using "entirely occupies".
that fully occupies
Similar to the original phrase but uses "fully occupies" to convey the complete filling of space.
that wholly fills
This alternative employs "wholly fills", stressing the entirety of the filling action.
that saturates entirely
Uses "saturates entirely" to describe a filling that permeates completely.
that encompasses entirely
Replaces the filling action with "encompasses entirely", focusing on covering the entire area.
that entirely covers
Shifts focus to the covering aspect of filling, using "entirely covers".
that occupies every inch
Emphasizes the filling of every single part, using "occupies every inch".
that leaves no space
Describes the absence of any remaining space, implying complete occupation.
that is packed full
Focuses on the density of the filling, using "packed full".
that is brimming
Uses the image of "brimming" to suggest a state of being completely full and overflowing.
FAQs
How can I rephrase "which completely fills" for variety?
You can use alternatives like "that entirely occupies", "that fully occupies", or "that wholly fills" depending on the specific context and desired emphasis. For example, instead of "a liquid which completely fills it", consider "a liquid "that entirely occupies" it".
Is it always necessary to use "completely" with "fills"?
No, "fills" often implies completeness. However, using "completely fills" can add emphasis or clarity when there's a need to stress that the space is entirely occupied. In some cases, using simpler terms like "occupies" may suffice.
What's the difference between "which completely fills" and "which almost completely fills"?
"Which completely fills" indicates that the space is entirely occupied, leaving no room. "Which almost completely fills" suggests that the space is nearly full, but there may be a small amount of space remaining. Choosing the correct phrase depends on the accuracy required for the description.
In what contexts is "which completely fills" most appropriate?
This phrase is suitable in descriptive writing, scientific reports, or technical documentation where precisely conveying the idea of full occupation is important. It is less common in informal conversation, where simpler expressions might be preferred.
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
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested