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
mass up
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "mass up" is not correct and does not have a clear meaning in standard written English.
It may be intended to convey a sense of gathering or increasing something, but it is not a recognized expression. Example: "We need to mass up our resources for the upcoming event." (Note: This usage is unconventional.)
⚠ May contain grammatical issues
Science
News & Media
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
Particle transport distance during a tidal cycle increases with particle size (or mass) up to a point, beyond which the particle transport rate begins to decrease with increasing size.
Science
Novel metabolic rate prediction equations for walking while carrying loads at the ankle, knees and back were developed based on experiments where subjects walked on a treadmill at 4, 5 or 6 km/h bearing different amounts of added mass (up to 2 kg per leg and 22 kg for back).
Science
A set of ultra-high molecular mass (up to 2×107 g/mol) poly methylmethacrylate), obtained in a previous work by B. Simionescu, was used together with a commercial set of lower molecular mass samples in order to cover two decades of molecular mass range.
Science
As early as in our 30s, we start to lose muscle mass, up to 5percentt per decade, if we don't work to maintain and build it.
News & Media
First time out, I really tried to mass up a lot - not just by working out but by drinking lots of high-caloric protein shakes and eating a ton of carbs.
News & Media
Testicular GCT most commonly presents as a painless palpable mass (up to 95% of cases) [ 1].
Science
Human-verified similar examples from authoritative sources
Similar Expressions
10 human-written examples
Today there are lot of soldiers and armoured vehicles are massing up at the entrance to Kafr Batna.
News & Media
Today there are lot of soldiers and armoured vehicles massing up at the entrance to Kafr Batna.
News & Media
Hyde's processed voice is eerily like Dolly Parton's, even when it's massed up high in digital reverb.
News & Media
The controlled objects are about 1000 compressors of masses up to 2000 kg employed in a gaseous diffusion enrichment process.
Soldiers may be required to carry up to 54.5 kg for several days, covering 20 km/day, with masses up to 68 kg being feasible.
Science
Expert writing Tips
Best practice
When intending to convey the meaning of gathering resources or increasing something, consider using more precise and commonly accepted alternatives such as "gather", "accumulate", or "build up".
Common error
Avoid using "mass up" in formal writing or when clarity is crucial, as it is not a standard English phrase and may lead to confusion. Opt for clearer alternatives like "build up" or "accumulate".
Source & Trust
78%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The function of "mass up" varies depending on the context. It can function as a phrasal verb implying the act of gathering or accumulating. However, as Ludwig AI indicates, it's not a standard English phrase, and its meaning can be unclear.
Frequent in
Science
42%
News & Media
38%
Wiki
10%
Less common in
Encyclopedias
5%
Formal & Business
5%
Social Media
0%
Ludwig's WRAP-UP
In summary, while the phrase "mass up" appears in various contexts, including science and news media, Ludwig AI identifies it as not being a standard English expression. Its meaning is often ambiguous, and it is advisable to use more precise and widely accepted alternatives such as "gather", "accumulate", or "build up". These alternatives ensure clarity and avoid potential confusion, especially in formal or professional writing. When writing, consider the context and choose the most appropriate and easily understood phrase to convey your intended meaning.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
build up
Indicates a gradual increase or development over time.
gather
Emphasizes bringing things or people together in one place.
concentrate
Emphasizes focusing or bringing together in a specific area.
muster
Suggests gathering forces or resources, often for a specific purpose.
marshal
Implies arranging and organizing resources or forces effectively.
accumulate
Focuses on the gradual gathering or increase of something over time.
assemble
Implies a more organized and structured collection of elements.
consolidate
Focuses on strengthening and solidifying something by combining elements.
stockpile
Specifically refers to accumulating a large supply of something.
increase
A general term for growing in size, number, or degree.
FAQs
What does "mass up" mean?
The phrase "mass up" is not a standard English expression. It can vaguely suggest gathering or increasing something, but its meaning is unclear without context. Consider using more precise alternatives such as "accumulate", "gather" or "build up".
Is it grammatically correct to use "mass up"?
According to Ludwig AI, the phrase "mass up" is not correct and does not have a clear meaning in standard written English. It's advisable to use more established phrases.
What are some alternatives to "mass up" for accumulating resources?
When referring to accumulating resources, you can use phrases like "gather resources", "accumulate resources", or "build up resources". These are more standard and easily understood.
How can I improve the clarity of my writing when tempted to use "mass up"?
To enhance clarity, replace "mass up" with specific verbs that accurately convey your intended meaning. For instance, use "concentrate forces" instead of "mass up forces", or "accumulate evidence" rather than "mass up evidence".
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
2.8/5
Expert rating
Real-world application tested