by days

USAGE SUMMARY

"by days" is a correct and usable phrase in written English.
It can be used to refer to a specific time span or deadline. Example: "The project must be completed by days end."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

These injuries first enlarged on Day 7, but then shrunk slightly by Days 14 and 28.

Magnetic Resonance Imaging

I had missed my opportunity by days.

The New York Times

She missed appointments, sometimes by days".

The New York Times - Arts

Several times he missed the suspect by days.

The New York Times

First they are divided by weeks, then only by days.

The Guardian - Books

"On this issue, we're measuring it by days".

The New York Times

The length could be by days, by week, or even by year.

Cornell University

"But if you measure it by days, it isn't so far.

Stanford University

Repeated counts separated by months returned quite different assemblages, whereas counts separated by days did not.

Journal of Experimental Marine Biology and Ecology

Some of these responses can outlive the original stimulus by days, weeks or even longer.

Brain Research

Human-verified similar examples from authoritative sources

Similar Expressions

1 human-written examples

With the growth in urbanization and industrialization, the demand for concrete is increasing day by-days.

Journal of Cleaner Production

Expert writing Tips

Best practice

Use "by days" to emphasize a gradual process or the passage of time, rather than a singular event. For example, "The swelling reduced by days, not hours."

Common error

Avoid using "by days" when you mean "by the end of the day" or a specific date. "The report is due by days" is vague; instead, specify "by the end of the week" or "by Friday."

Linguistic Context

The phrase "by days" primarily functions as an adverbial phrase, modifying verbs or clauses to indicate a timeframe or the rate at which something changes or occurs. As Ludwig AI states, this phrase is grammatically correct and can be used in written English. It provides information about the duration or progression of an event.

Expression frequency: Very common

Frequent in

News & Media

40%

Science

35%

Academia

10%

Less common in

Formal & Business

5%

Wiki

5%

Reference

5%

Ludwig's WRAP-UP

In summary, the phrase "by days" is a versatile and commonly used adverbial phrase that indicates a progression or timeframe spanning multiple days. As Ludwig AI confirms, it is grammatically correct and readily usable in various contexts. Predominantly found in News & Media and Scientific publications, it serves to add temporal context to events and changes. When using "by days", ensure it accurately conveys the intended timeframe and avoid confusing it with specific deadlines or the more iterative "day by day". Remember, while "by days" suggests a period, specifying more precise durations (e.g., "within three days") can enhance clarity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

within a few days

Emphasizes a short, unspecified duration.

over several days

Highlights the duration as being more than a couple of days.

in a matter of days

Stresses the rapidity or quickness of the timeframe.

day after day

Implies a continuous, repetitive action occurring daily.

on a daily basis

Focuses on the regularity and routine nature of something occurring each day.

each passing day

Conveys a sense of gradual progression or change over time.

as the days go by

Similar to "each passing day" but with a more passive observation of time.

during those days

Refers to a specific period in the past, lasting multiple days.

for a number of days

Indicates an indefinite quantity of days.

spanning multiple days

Highlights that an event or activity extends across several days.

FAQs

How can I use "by days" in a sentence?

You can use "by days" to describe something that changes or progresses over a period of days. For instance, "The patient's condition improved "by days" after starting the new medication."

What phrases are similar to "by days"?

Alternatives to "by days" include "within a few days", "over several days", or "in a matter of days", depending on the specific meaning you want to convey.

Is it correct to say "day by day" instead of "by days"?

While "day by day" and "by days" both refer to the passage of time, they have slightly different nuances. "Day by day" often emphasizes a gradual or incremental change, while "by days" simply indicates a timeframe. Consider the context to determine which phrase is more appropriate.

How does the meaning of "by days" differ from "daily"?

"Daily" refers to something that happens every day, while "by days" indicates a change or progression happening over a period of multiple days. For example, "the daily report" is different from "progress observed "by days"".