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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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But Tarasenko, 26, is unable to feed his caffeine habit, as his favourite fizzy drink is no longer in stock at his local supermarket.

From Barron's ● Sep. 27, 2026

A simple question about chilled caffeine has sparked heated debates on couches and online about workplace decorum, highlighting shifting expectations of professionalism.

From The Wall Street Journal ● Sep. 25, 2026

For instance, an iced coffee might win points at a company in the caffeine business.

From The Wall Street Journal ● Sep. 25, 2026

If nighttime recovery becomes less effective, the person may feel more tired the following day and turn to even more caffeine for help.

From Science Daily ● Sep. 22, 2026

“I’ve been waiting to get into the Chat for a cup of coffee for fifteen minutes already. If I don’t get some caffeine soon, I might drop into one of those whaddyacallits. Comas.”

From "Bone Gap" by Laura Ruby




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