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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
it varies day by day
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "it varies day by day" is correct and usable in written English.
You can use it to describe something that changes frequently or inconsistently over time, typically on a daily basis. Example: "The weather in this region is unpredictable; it varies day by day, making it hard to plan outdoor activities."
✓ Grammatically correct
News & Media
Science
Alternative expressions(2)
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
Figure 2 shows how mortality risk varies day-by-day over the first year on ART.
Science
It has long been observed that the cytotoxicity of a single batch of CIK cells in continuous culture varies day by day [ 9].
Science
And the quality varies day by day, block by block.
News & Media
Before beginning any workout, it's good to assess your current level of flexibility -- which can vary day by day.
News & Media
Several readers are confused about hand-baggage rules that seem to vary day by day and from country to country.
News & Media
Rather than the whole workforce walking out, the exact workforce on strike varied day by day.
News & Media
I've learned that the inputs and outcomes of this large-scale social experiment vary day by day.
News & Media
Observation time for consecutive UVI imaging is typically over half a day, but it varies significantly day by day.
Science
Notice how it varies from day to day.
News & Media
What is your definition of God? JEAN: It varies from day to day.
News & Media
"It varies from day to day so you just rolled with the punches and did the job".
News & Media
Expert writing Tips
Best practice
When describing trends or conditions that are not stable, use "it varies day by day" to convey unpredictability or inconsistency. For example, "The demand for our product it varies day by day, so we adjust our production schedule accordingly."
Common error
Avoid using "it varies day by day" when describing long-term trends or seasonal changes. This phrase is best suited for short-term, daily fluctuations, not for changes that occur over weeks or months.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it varies day by day" functions as an adverbial phrase. Ludwig AI indicates it's used to modify a verb or clause, indicating the frequency or manner in which something changes. It specifies that the variation occurs on a daily basis.
Frequent in
News & Media
52%
Science
42%
Academia
6%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "it varies day by day" is a grammatically sound and commonly used expression to indicate daily fluctuations or inconsistencies. According to Ludwig AI, it is correct and usable in written English. It functions as an adverbial phrase, adding detail to verbs or clauses by describing the nature of daily changes. While alternatives like "it changes daily" or "it fluctuates from day to day" exist, "it varies day by day" provides a specific emphasis on the daily variation. It's essential to use this phrase when describing short-term, daily fluctuations rather than long-term trends.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
it changes daily
Focuses on the daily change aspect, simplifying the phrase.
it fluctuates from day to day
Replaces "varies" with "fluctuates", emphasizing irregular movement or change.
it differs each day
Substitutes "varies" with "differs" and specifies "each day" for clarity.
it is not consistent daily
Highlights the lack of consistency on a daily basis.
it shifts on a daily basis
Uses "shifts" to indicate a change in position or state each day.
it evolves day after day
Implies a gradual development or change over successive days.
it morphs from one day to the next
Suggests a transformation or significant change between consecutive days.
it's subject to daily modification
Highlights the susceptibility to changes on a daily timeframe.
the daily conditions are variable
Emphasizes the daily conditions, stressing their variability.
the situation is in daily flux
Portrays the situation as being in a constant state of change each day.
FAQs
How can I use "it varies day by day" in a sentence?
Use "it varies day by day" to describe something that changes frequently or inconsistently on a daily basis. For example, "The quality of the ingredients it varies day by day, so the taste of the dish can be different each time".
What are some alternatives to "it varies day by day"?
You can use alternatives like "it changes daily", "it fluctuates from day to day", or "it differs each day" depending on the context.
Is it correct to say "it varies from day to day" instead of "it varies day by day"?
Yes, both "it varies from day to day" and "it varies day by day" are correct and convey a similar meaning. The choice between them often comes down to personal preference or stylistic considerations.
What's the difference between "it varies day by day" and "it varies by the day"?
"It varies day by day" emphasizes a continuous change happening each day, while "it varies by the day" suggests that the variation is dependent on or influenced by the specific day. For example, "The amount of sunlight it varies by the day based on weather conditions".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested