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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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Asked what he is missing the most during his month-long challenge, he said: "It's got to be caffeine."

From BBC Sep. 8, 2026

I had recently told Mona, my older sister, about the caffeine liaison, and I instantly had regretted it as I glanced at her text.

From Los Angeles Times Aug. 7, 2026

After all, each 5.3-ounce cup contained about 32 milligrams of caffeine, or about a third of an 8-ounce cup of coffee.

From The Wall Street Journal Aug. 3, 2026

They added that Bodyarmor Fit — a new sparkling sports drink with zero sugar that combines electrolytes and caffeine — has helped expand Coca-Cola’s “functional” offerings.

From MarketWatch Jul. 28, 2026

He was too anxious for caffeine, so he grabbed a lemonade.

From "Anger Is a Gift" by Mark Oshiro




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