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
sustains
Grammar usage guide and real-world examplesUSAGE SUMMARY
The word 'sustains' is correct and usable in written English.
It is a verb that means to keep or maintain, either physical or emotional support. Example sentence: The community sustains the local farmers through donations and support.
✓ Grammatically correct
News & Media
Formal & Business
Science
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
"I think what sustains Brighton's coffee shops is the fact that there are so many freelancers and creatives in the city," he says.
News & Media
The same explanation sustains female genital mutilation (FGM).
News & Media
If the economy tanks because public spending no longer sustains as much private activity, he and Osborne will have to prime the pump as unemployment rises.
News & Media
Ian McEwan has mounted a fierce defence of free speech in an address to students at a US college, telling his audience that "freedom of expression sustains all the other freedoms we enjoy", and that "without free speech, democracy is a sham".
News & Media
Watch how she sustains those pirouettes in attitude at 0 31 and 0 38, and note the part played by her arms.
News & Media
With a reported production budget of only $8.5m, this was potentially an attractively priced acquisition for UK distributor eOne, especially if word-of-mouth sustains.
News & Media
"AN ATTACKING force always sustains more casualties," said a Sri Lankan army commander, seeking to dismiss the army's large losses in an attack on Tamil Tiger rebels.
News & Media
That sustains a break with investment-led growth that dates back to 2011.
News & Media
That was worrying because the collective faith that sustains the NPT is easily frayed.
News & Media
Ammonia synthesised using the Haber-Bosch process underpinned the "green revolution" in the second half of the 20th century and its associated population boom; today it sustains one-third of the world's population.
News & Media
Critics of Israeli policy argue that the country denies basic human rights to millions of Palestinians on the West Bank and in Gaza, and sustains its occupation of Arab land with indiscriminate force.
News & Media
Expert writing Tips
Best practice
When using "sustains", consider the specific nuance you want to convey: is it about maintaining, supporting, or prolonging? Choose synonyms accordingly to enhance clarity and precision.
Common error
Avoid overuse of "sustains" in overly formal contexts where simpler verbs like "keeps" or "supports" might sound more natural. Context is key to effective communication.
Source & Trust
93%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "sustains" is as a transitive verb. It describes an action performed on an object, indicating that something or someone is maintaining or supporting something else. Ludwig provides numerous examples showing it in use.
Frequent in
News & Media
48%
Formal & Business
28%
Science
24%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the verb "sustains" is a grammatically correct and frequently used term signifying maintenance, support, or prolongation. Ludwig AI confirms its validity and applicability across diverse contexts, especially in news, business, and scientific domains. While versatile, careful consideration of context helps avoid overuse in excessively formal writing. Related phrases such as "maintains" and ""supports"" offer nuanced alternatives. Remember to choose the synonym that best fits the intended meaning for enhanced clarity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
maintains
Focuses on keeping something in its current state without necessarily implying support or nourishment.
supports
Emphasizes providing assistance or resources to keep something functioning or existing.
upholds
Suggests defending or preserving something, often a principle or standard.
preserves
Highlights the act of protecting something from harm or decay to maintain its original condition.
nourishes
Implies providing sustenance or care to promote growth or health.
funds
Specifically refers to providing financial resources to support an activity or organization.
bolsters
Suggests strengthening or reinforcing something that is already in place.
keeps alive
Emphasizes preventing something from ceasing to exist or function.
carries on
Focuses on continuing an activity or process without interruption.
underpins
Highlights the foundational support that something provides to a larger structure or system.
FAQs
How to use "sustains" in a sentence?
What can I say instead of "sustains"?
Which is correct, "sustains" or "maintain"?
"Sustains" is the third-person singular present tense form of the verb "sustain", while "maintain" is the base form. Use "sustains" when the subject is singular (e.g., "The government sustains the economy"), and "maintain" with plural subjects (e.g., "They maintain the building").
What's the difference between "sustains" and "supports"?
"Sustains" implies a continuous effort to keep something in existence or in a particular state, while ""supports"" suggests providing assistance or resources. Sustaining is about continuation, while supporting is about providing aid.
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
93%
Authority and reliability
4.6/5
Expert rating
Real-world application tested