caffeine

USAGE SUMMARY

"caffeine" is a correct and usable word in written English.
You can use it to refer to a stimulant alkaloid, or to describe a product or drink that contains the alkaloid, such as coffee or tea. For example: "I need to get some caffeine in order to stay awake while I finish this report."

✓ Grammatically correct

News & Media

Formal & Business

Science

Human-verified examples from authoritative sources

Exact Expressions

55 human-written examples

Early on, it seemed that the lack of caffeine would transform one of the world's most caffeinated populations into zombies, but coffee trucks have begun showing up, and some clever store owners have brought in vast urns.

The Economist

There's no reason for children to avoid caffeine drinks unless they become overactive after having them, which obviously isn't the case with your son.

The Guardian - Lifestyle

The Cupping Room is one of the finest examples of local caffeine culture: it offers several espresso blends but just one type of "milk-based espresso drink" – meaning those in search of coffee adulterated with chocolate or other additives will need to look elsewhere.

The Guardian - Travel

The authors did not quantify what cap should be imposed on caffeine levels but stated that it should be evidence based.

The Guardian

A spokesman said: "The FSA advises that people who are sensitive to caffeine should only consume high caffeine drinks... in moderation".

The Guardian

Other recommendations included making health practitioners aware of the potential dangers of excess caffeine consumption, screening patients with a history of diet problems and substance abuse for heavy consumption of energy drinks, educating the public about the risks of mixing them with alcohol and better labelling.

The Guardian

Human-verified similar examples from authoritative sources

Similar Expressions

5 human-written examples

The recent demise of Krank2O and Aqua Java in America shows that caffeinated water is a tough sell; and they'll be squeezed by the caffeine-free vitamin waters being touted aggressively by every urban sandwich bar.There are big question marks over the energy beers, too.

The Economist

High-caffeine drinks, however, are not the same as coffee and should be avoided by adolescents and drunk sparingly by adults.

The Guardian - Lifestyle

After months of labour, putting the finishing touches to a project that represents the culmination of your undergraduate education can turn into a caffeine-fuelled ordeal.

The Guardian

In the UK, the Food Standards Agency requires high-caffeine energy drinks to be labelled as such and from December they must contain a warning stating: "Not recommended for children or pregnant or breastfeeding women".

The Guardian

• Don't drink too many caffeine-containing drinks.

The Guardian - Books

Expert writing Tips

Best practice

Use "caffeine" when specifically referring to the chemical compound or its presence in products. For general discussions about energy or alertness, consider broader terms like "stimulants" or "energy boosters".

Common error

Avoid using "caffeine" as a blanket term for all energy-boosting substances. While "caffeine" is a stimulant, not all stimulants are caffeine. Be specific in your language.

Linguistic Context

The primary grammatical function of "caffeine" is as a noun. It names a specific alkaloid compound. As Ludwig shows, it can be also used as an uncountable noun referring to the presence of such substance.

Expression frequency: Very common

Frequent in

News & Media

50%

Formal & Business

25%

Science

25%

Less common in

Wiki

0%

Encyclopedias

0%

Social Media

0%

Ludwig's WRAP-UP

This guide explores the usage of the word "caffeine". It is primarily used as a noun. Ludwig AI indicates that "caffeine" is grammatically correct. Its usage is very common, appearing frequently in news, business, and scientific contexts. When writing about "caffeine", be specific about its chemical properties or its presence in various products. Consider synonyms like "stimulant" or "energy booster" for broader discussions. Be mindful of the register and avoid using it as a blanket term for all energy-boosting substances.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

stimulant

Focuses on caffeine's primary effect as a stimulant.

coffee

Highlights coffee as a major source of caffeine.

tea

Highlights tea as another source of caffeine.

energy boost

Emphasizes the energizing effect of caffeine.

wakefulness

Highlights caffeine's effect on alertness.

coffee consumption

Highlights coffee drinking as the act of ingesting caffeine.

stimulating substance

Broader term for caffeine and similar compounds.

methylxanthine

Technical term for caffeine's chemical class.

caffeinated beverage

Describes drinks containing caffeine.

alertness enhancer

Focuses on caffeine's ability to increase alertness.

FAQs

How to use "caffeine" in a sentence?

You can use "caffeine" to describe a substance, effect, or ingredient in a beverage, such as "I need a dose of caffeine to start my day" or "This soda is high in caffeine".

What can I say instead of "caffeine"?

Depending on the context, you can use alternatives like "stimulant", "energy booster", or refer to specific sources like "coffee" or "tea".

Which is correct, "caffeine" or "caffein"?

"Caffeine" is the correct spelling. "Caffein" is an outdated or less common variant.

What's the effect of "caffeine" on the body?

"Caffeine" acts as a stimulant, increasing alertness and reducing fatigue. However, excessive "caffeine" consumption can lead to insomnia, jitteriness, and other adverse effects.