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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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fluctuated

Grammar usage guide and real-world examples

USAGE SUMMARY

The word "fluctuated" is a perfectly acceptable and usable word in written English.
It is typically used to describe a change in a measurable quality (such as a temperature or stock price) over a given period of time, i.e. "The temperature fluctuated from 58 to 62 degrees over the course of the day."

✓ Grammatically correct

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

The authors of the PLOS One study also published a paper in Obesity Facts (although, again, the study was small) showing that people whose weight fluctuated the most over the week were actually the most likely to keep their weight steady – perhaps because this is actually the normal rhythm of our weight.

Over the two years before I started university, my body fluctuated and metamorphosed constantly.

News & Media

The Guardian

For example, the number of jobs people say this industry will create has fluctuated wildly".

News & Media

The Guardian

The polls have remained static, while the football team David Cameron supports has fluctuated.

Rates, in turn, fluctuated in response to foreign affairs in general and military ones in particular.

News & Media

The Economist

Since CO2 lingers in the atmosphere for a century or more, any plan must also extend across several generations.The plan must recognise, too, that climate change is nothing new: the climate has fluctuated through history, and mankind has adapted to those changes and must continue doing so.

News & Media

The Economist

In Latin America, recent recessions have lasted longer and cut deeper than elsewhere, and inflation and economic output have fluctuated wildly.

News & Media

The Economist

Although the prices of energy and food have bounced up and down since 2008, inflation expectations and, until recently, core inflation have fluctuated around 2%, giving the Fed no reason to raise interest rates.

News & Media

The Economist

Since the zloty was floated in 2000, its value has fluctuated a great deal.

News & Media

The Economist

Involuntary part-timers account for no more than 3-4% of the workforce, and though that figure has fluctuated with the business cycle it has shown no signs of a long-term increase.

News & Media

The Economist

The company noticed an odd thing about Pampers, its well-known brand of disposable nappies: although the number of babies and the demand for nappies remained relatively stable, orders for Pampers fluctuated dramatically.

News & Media

The Economist
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Expert writing Tips

Best practice

When using "fluctuated," ensure that the subject is something that can logically vary or oscillate. For instance, it's appropriate to say "prices fluctuated," but not "the building fluctuated."

Common error

Avoid using "fluctuated" when there is a clear upward or downward trend. "Fluctuated" implies irregular variation, not a consistent directional change. If prices consistently rose, do not say they fluctuated.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

88%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The primary grammatical function of "fluctuated" is as a verb, specifically the past tense of "fluctuate". It describes the action of something varying irregularly. Ludwig confirms that the word is acceptable and usable in written English.

Expression frequency: Very common

Frequent in

News & Media

56%

Encyclopedias

17%

Formal & Business

9%

Less common in

Science

9%

Reference

0%

Social Media

0%

Ludwig's WRAP-UP

The word "fluctuated", as confirmed by Ludwig AI, is a grammatically correct and frequently used verb to describe irregular variations or changes over time. Analysis of Ludwig's examples reveals its prevalence in News & Media and Encyclopedias. While alternatives like "varied" or "oscillated" exist, "fluctuated" specifically conveys irregular movement. When using "fluctuated", ensure that the subject logically varies and that the context does not suggest a consistent trend. Being mindful of its meaning helps to avoid common errors such as using it for trending values. Understanding these nuances will enhance the clarity and precision of your writing.

FAQs

How can I use "fluctuated" in a sentence?

You can use "fluctuated" to describe something that varies or changes irregularly. For example, "The stock prices "fluctuated" throughout the day" or "Her emotions "fluctuated" between hope and despair depending on the news she received".

What are some words similar to "fluctuated"?

Similar words include "varied", "oscillated", "wavered", and "shifted". The best choice depends on the specific context and the nuance you want to convey.

What's the difference between "fluctuated" and "changed"?

"Changed" is a general term for becoming different. "Fluctuated" implies irregular variations or oscillations between different levels or states. Something that "changed" may have moved to a new state permanently, while something that "fluctuated" goes up and down.

Is it correct to say "the temperature fluctuated constantly"?

While grammatically correct, it might be redundant. "Fluctuated" already implies ongoing variations. Consider revising to "The temperature "fluctuated" significantly" or "The temperature "fluctuated" throughout the day" for better clarity.

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Source & Trust

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Authority and reliability

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Real-world application tested

Most frequent sentences: