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Definitions

caffeine

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


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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"Fortunately I've got over the caffeine withdrawals," he said.

From BBC Sep. 8, 2026

I enjoy breakfast food a lot, but if I want to have an eventful fun day, I need to just get the breakfast out of the way and get some caffeine in me.

From Los Angeles Times Aug. 14, 2026

Coffee and caffeine pills, he said, “do not give me the same mental clarity.”

From The Wall Street Journal Aug. 4, 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

It’s 5:48 in the morning, I’m thinking of making an outfit for my clock radio, and I’m so full of caffeine that my scalp itches.

From "Me Talk Pretty One Day" by David Sedaris




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