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Definitions

caffeine

[ka-feen, kaf-een, kaf-ee-in] / kæˈfin, ˈkæf in, ˈkæf i ɪn /


Example Sentences

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For matcha fans, the drink contains more caffeine than a cup of tea but less than a regular coffee.

From BBC Jul. 8, 2026

They said that caffeine could affect the results, and gel interferes with the electrodes.

From The Wall Street Journal Jun. 27, 2026

The launch is the latest example of musicians turning their love of caffeine into a business venture.

From Salon Jun. 15, 2026

Think about when you want to sleep and then have the last caffeine hit eight hours before to help you power through.

From BBC Jun. 13, 2026

Lacey says, “Is it that weird feeling you get from so much caffeine that, like, your heart isn’t beating so much as your whole body is beating?”

From "Paper Towns" by John Green




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