at one day

USAGE SUMMARY

The phrase "at one day" is not correct and not usable in written English.
It seems to be an incorrect attempt to express a specific time or occasion. Example: "At one day, I hope to travel the world."

⚠ May contain grammatical issues

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

39 human-written examples

Hydra were macerated at the end of treatment as well as at one day and at three days after hydroxyurea treatment was over and stained for EdU.

Biology Open

Although the ability to walk on a grid was severely impaired at one day after the injury, it gradually improved until 4 weeks after the injury.

Cell Death and Disease

It presented a peak of tumor necrosis factor- α (TNF- α) secretion at one day after the lesion, and a transient YM1 secretion within the first three days.

BioMed Research International

Salmonella Enteritidis was inoculated via gavage at one day of age (106 cfu/mL).

Veterinary Immunology and Immunopathology

The creep coefficients at one year for specimens loaded at one day were 2.0 for LWSCC and 2.9 for SCC.

Construction and Building Materials

MESP1 expression peaked at one day after the peak of Brachyury expression.

Nature

Human-verified similar examples from authoritative sources

Similar Expressions

21 human-written examples

She will be discussing this and more in her workshop at one-day campaigning conference, People Power, on 24 April.

The Guardian

A lot of people showed up on Saturday to make their communities better at one-day events.

Huffington Post

In general, consecutive flower opening occurred at one-day intervals 75% of the time, until the 16th flower on a given inflorescence (Fig. 1C).

BMC Plant Biology

Hardness ratios are also preserved at one-day intervals.

Massachusetts Institute of Technology

The mass defection from the commentary box helps to explain why England are so hopeless at one-day cricket.

The Guardian - Sport

Expert writing Tips

Best practice

When referring to a specific day, use "on" (e.g., "on one day, I hope to travel the world"). If you're referring to a duration, use "in" (e.g., "the project was completed in one day").

Common error

Avoid using "at one day" as it is grammatically incorrect. Choose "on one day" to specify a particular day or "in one day" to indicate a task completed within a 24-hour period.

Linguistic Context

The phrase "at one day" functions as an adverbial phrase, attempting to specify a point in time. However, it's considered grammatically incorrect. Ludwig AI identifies it as an improper way to express a specific occasion.

Expression frequency: Rare

Frequent in

Science

60%

News & Media

20%

Academia

20%

Less common in

Encyclopedias

0%

Formal & Business

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "at one day" is generally considered grammatically incorrect, as confirmed by Ludwig AI. It appears in a limited number of examples, primarily within scientific and news contexts, but its use is inconsistent and often reflects an error. Correct alternatives include "on one day" for specifying a particular day or "in one day" for indicating a duration. Given the grammatical issues, careful attention should be paid to the proper preposition to ensure clarity and correctness in writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

in one day

Replaces "at" with "in" to denote duration within a single day.

on one day

Uses "on" instead of "at" to specify a particular day.

within a day

Indicates something happens inside the timeframe of a day.

during one day

Specifies an action occurs sometime during the 24-hour period.

for a day

Denotes a duration of a single day, modifying the time frame.

over a day

Refers to an action taken across the course of one entire day.

throughout a day

Emphasizes the action happens continually during all portions of the single day.

in the space of a day

Highlights the limitation or constraint of the timeline, which is one day.

one day later

Expresses a time point occurring 24 hours from a defined origin.

the following day

Specifies the next day as a subsequent point in time, avoiding 'at'.

FAQs

What's the correct way to refer to a specific day?

Use "on one day" to specify a particular day when something happened or will happen. For example, "On one day, I decided to change my career path".

How can I express something that happens during a single day?

Use "in one day" to indicate that something is completed or occurs within a 24-hour period. For instance, "The entire project was finished "in one day"".

Is "at one day" grammatically correct?

No, "at one day" is generally considered grammatically incorrect. Alternatives like "on one day" or ""in one day"" are more appropriate, depending on the context.

Which preposition should I use with "one day": "at", "on", or "in"?

Use "on" to refer to a specific day and "in" to refer to a duration of a day. Avoid using "at" with "one day" as it's not grammatically correct. Consider saying, "On one day, I will visit" or "The work was done "in one day"".