an approximate time span of

USAGE SUMMARY

The phrase "an approximate time span of" is correct and usable in written English.
You can use it when discussing a duration that is not exact but provides a general idea of the length of time involved. Example: "The project will take an approximate time span of three to four weeks to complete."

✓ Grammatically correct

Human-verified similar examples from authoritative sources

Similar Expressions

60 human-written examples

From these studies an approximate time of divergence from the common ancestor of all modern human populations can be calculated.

Columbia University

It's coming to an end but we don't have an approximate time of how long that will take to finish".

The Guardian

Police said on Tuesday that the medical examiner can't give an approximate time of death right now, but noted that the body had started to decompose.

Huffington Post

Here we approximate one time step as one month given past data calibration (Abdollahian et al. 2012) for a simulated time span of almost 60 years.

Complex Adaptive Systems Modeling

First, although we cover a reasonable time span of 10 years, future studies can cover a longer span thereby increasing the possibility of highlighting more trends and patterns.

Journal of Innovation and Entrepreneurship

Severity of illness scores were recorded over a time span of 24 h around T-ASTmax.

Annals of Intensive Care

We decided to cover a time span of one year for the newspapers and magazines (March 2010 March 201111).

European Journal of Futures Research

A time span of 15 years seems to be reasonable for efficient decisions.

European Journal of Futures Research

The simulations were performed in transient mode for a time span of 350 s.

International Journal of Energy and Environmental Engineering

Finally, the thermal changes in the subsurface were simulated over a time span of 30 years.

Geothermal Energy

Single-dose simulations were performed with a time span of 240 h and multidose simulations were performed with a time span of 480 h.

CPT: Pharmacometrics and Systems Pharmacology

Expert writing Tips

Best practice

When using "an approximate time span of", clearly indicate the units of time (e.g., days, weeks, months, years) to avoid ambiguity. For example, "an approximate time span of six months" is more precise than "an approximate time span".

Common error

Avoid using "an approximate time span of" when a more precise estimate is available. If you have specific data, provide a range or a more accurate figure instead.

Linguistic Context

The phrase "an approximate time span of" functions as a determiner phrase used to modify a noun, indicating the duration or length of something is being estimated rather than precisely measured. Ludwig confirms this usage.

Expression frequency: Missing

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Less common in

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Ludwig's WRAP-UP

The phrase "an approximate time span of" is a grammatically correct way to express an estimated duration. As Ludwig confirms, it's used to indicate that a timeframe is not exact but provides a general idea of the length of time involved. While this phrase is understandable, due to the lack of frequency in the provided data, it is considered "Missing". When using this phrase, it's best to include the units of time to avoid ambiguity and avoid using it when a more precise estimate is possible.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

estimated duration of

Replaces "approximate" with "estimated", focusing on the calculation rather than the range.

approximate duration of

Simply shortens "time span" to "duration".

rough timeframe of

Uses "timeframe" instead of "time span", implying a less precise estimate.

estimated period of

Substitutes "time span" with "period", suggesting a broader or less defined duration.

projected length of time

Emphasizes the prediction aspect of the time span.

anticipated duration of

Highlights the expectation of a certain duration.

approximate length of

Uses "length" instead of "time span", focusing on the duration's measure.

tentative timeframe for

Emphasizes the uncertainty and provisional nature of the timeframe.

preliminary estimate of time

Focuses on the initial and potentially revised nature of the time estimate.

order of magnitude estimate for

Suggests a very broad and imprecise estimate, focusing on powers of ten.

FAQs

How can I use "an approximate time span of" in a sentence?

Use "an approximate time span of" to indicate an estimated duration, like "The renovation is expected to take "an approximate time span of" three months".

What are some alternatives to "an approximate time span of"?

Consider using phrases such as "estimated duration of", "rough timeframe of", or "projected length of time" as alternatives to "an approximate time span of" depending on the specific context.

Is it better to be specific or use "an approximate time span of"?

If possible, provide a specific range (e.g., "2-3 weeks"). Use "an approximate time span of" when a precise duration is unknown or not crucial to the context.

What's the difference between "approximate" and "exact" when describing time?

"Approximate" indicates an estimated or inexact duration, while "exact" refers to a precise and confirmed duration. For instance, you might say "the meeting lasted "approximately one hour"" versus "the meeting lasted exactly one hour".